CN111504847A - Crack detection device and method for automobile casting cylinder body - Google Patents
Crack detection device and method for automobile casting cylinder body Download PDFInfo
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- CN111504847A CN111504847A CN202010542216.6A CN202010542216A CN111504847A CN 111504847 A CN111504847 A CN 111504847A CN 202010542216 A CN202010542216 A CN 202010542216A CN 111504847 A CN111504847 A CN 111504847A
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- 238000001514 detection method Methods 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000005266 casting Methods 0.000 title claims abstract description 13
- 238000003825 pressing Methods 0.000 claims abstract description 100
- 238000007789 sealing Methods 0.000 claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 98
- 238000002347 injection Methods 0.000 claims description 21
- 239000007924 injection Substances 0.000 claims description 21
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000001125 extrusion Methods 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims description 2
- 230000003139 buffering effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241000209128 Bambusa Species 0.000 description 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
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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
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/025—Details with respect to the testing of engines or engine parts
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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
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
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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
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
- G01M3/3209—Details, e.g. container closure devices
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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
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
- G01M3/3236—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers
- G01M3/3272—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers for verifying the internal pressure of closed containers
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Abstract
The invention discloses a crack detection device and method for an automobile casting cylinder body, and belongs to the technical field of crack detection of cylinder bodies. The crack detection device and method for the automobile casting cylinder body ensure the flatness of the pressing surface, better ensure the internal sealing property, prolong the service life of the pressing plate, improve the detection efficiency through double detection, also improve the accuracy of a detection result, well control the quality of the cylinder body, ensure the internal sealing property, reduce the loss of direct pressing on the cylinder body, improve the stability of a detection environment, and be more easily detected, and improve the detection speed.
Description
Technical Field
The invention relates to the technical field of cylinder body crack detection, in particular to a device and a method for detecting cracks of an automobile casting cylinder body.
Background
After the automobile runs for a certain kilometer, the fatigue crack of the cylinder barrel of the automobile engine is caused due to the action of thermal load and mechanical load, so that the water in the water jacket outside the cylinder barrel leaks to a combustion chamber, the normal work of the engine is directly influenced, and even the engine is flamed out and can not work. Therefore, should carry out crack detection with the overhaul in-process at the three guarantor of vehicle engine with the engine cylinder section of thick bamboos, the detection of original car cylinder body casing is whole to have artifical the completion, consumes a large amount of time, and can't ensure the stability of testing environment in the testing process, and sealed effect is not good, leads to the testing result unstable, and can't accomplish quick accurate detection.
Disclosure of Invention
The invention aims to provide a crack detection device and method for an automobile casting cylinder body, which can ensure the flatness of a pressing surface, better ensure the internal sealing performance, prolong the service life of a pressing plate, improve the detection efficiency and the accuracy of a detection result through double detection, can well control the quality of the cylinder body, ensure the internal sealing performance, reduce the loss of direct pressing on the cylinder body, improve the stability of a detection environment, be more easily detected and improve the detection speed, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides an automobile casting cylinder body crackle detection device, includes PMKD, PMKD's both ends set up the curb plate, install the control box on the curb plate of front end, the top fixed support board of both ends curb plate fixes water injection device, air pump and clamping device in the backup pad, and water injection device and air pump setting are in the both sides of clamping device, it waits to detect the cylinder body to set up between PMKD and the clamping device, and four sides are fixed with the location guide bar on the PMKD, and clamping device below sets up the location guide bar, set up the determine module in the clamping device, the determine module is connected with the control box electricity.
Further, the clamping device comprises an air cylinder, an upper pressing plate, a lower pressing plate and a clamping groove, the air cylinder is fixed on the supporting plate, an output rod of the air cylinder penetrates through the supporting plate and is fixed to the top end of the upper pressing plate, the four corners of the upper pressing plate and the four corners of the lower pressing plate start to the guide grooves, the upper pressing plate and the lower pressing plate are connected to the positioning guide rods in a sleeved mode through the guide grooves, the lower pressing plate is arranged below the upper pressing plate, and the clamping groove starts to be formed in a clamping surface between the upper pressing plate and the lower pressing plate.
Further, an air inlet and a water filling port are started in a clamping groove of the upper pressing plate, and the air inlet and the water filling port are respectively connected with an air pump and a water filling device.
Furthermore, the clamping grooves of the upper pressing plate and the lower pressing plate are internally provided with a sealing ring pad, an annular sealing groove is formed in the sealing ring pad, the upper end face and the lower end face of the cylinder body to be detected are respectively sleeved with an upper sealing sleeve and a lower sealing sleeve, and the upper sealing sleeve and the lower sealing sleeve are inserted into the annular sealing groove and are in sealing connection.
Further, the water injection device comprises a water storage tank, a water delivery pipe and a heating pipe, wherein the annular heating pipe is installed in the inner wall of the water storage tank, the upper end of the water storage tank is provided with a water inlet, the water delivery pipe is connected below the water storage tank, the water delivery pipe is provided with an electromagnetic valve, and the micro end of the water delivery pipe is hermetically connected with the water injection port.
Further, the detection assembly comprises a pressure sensor and a humidity detector, the pressure sensor is arranged in the middle of the clamping groove in the upper pressing plate, the humidity detector is arranged on the lower pressing plate, and the pressure sensor and the humidity detector are both in wireless connection with the control box.
Furthermore, four groups of positioning guide rods are arranged, an extrusion spring is sleeved on the positioning guide rod between the fixed bottom plate and the lower pressing plate, and an extrusion spring is also sleeved on the positioning guide rod between the supporting plate and the upper pressing plate
The invention provides another technical scheme: a crack detection method of a crack detection device of an automobile casting cylinder body comprises the following steps:
the method comprises the following steps: before detection, an upper sealing sleeve and a lower sealing sleeve are respectively sleeved on two end heads of the cylinder body to be detected, and then the sleeved cylinder body to be detected is placed in a clamping groove of a lower pressing plate to enter the cylinder body to be detected;
step two: the cylinder body to be detected is placed in the rear cylinder to operate, the upper pressing plate is driven to press downwards, the cylinder body to be detected is pressed tightly by the upper pressing plate and the lower pressing plate, air is conveyed into the extruded cylinder body to be detected through the air pump, and the air pressure in the cylinder body to be detected is detected by the pressure sensor;
step three: after the pressure sensor detects the pressure change, the water injection device injects hot water into the squeezed cylinder body to be detected, and the moisture detector detects whether water overflows outside the cylinder body, so that whether cracks exist in the cylinder body is detected.
Further, aiming at the third step, before hot water is injected into the cylinder body to be detected, the annular heating pipe in the water storage tank heats the water stored in the water storage tank to the required temperature and then keeps the temperature.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the crack detection device and method for the automobile casting cylinder body, the four corners of the lower pressing plate of the upper pressing plate are extruded by the extrusion springs at the upper end and the lower end of the guide rod, so that the upper pressing plate and the lower pressing plate are uniformly stressed in the pressing process, the flatness of a pressing surface is guaranteed, the internal sealing performance is better guaranteed, the pressure born by the two pressing plates is reduced by the arrangement of the extrusion springs, the buffering force is provided for the pressing plates, and the service life of the pressing plates is prolonged.
2. According to the crack detection device and method for the automobile casting cylinder body, a sealed space is formed in the cylinder body to be detected, air is conveyed into the extruded cylinder body to be detected through the air pump, the pressure sensor detects the air pressure in the cylinder body to be detected, the pressure sensor continuously monitors when the air pressure value reaches a stable value, cracks can occur in the cylinder body to be detected if the air pressure value gradually decreases, water can be injected into the cylinder body to be detected through the water injection device at the moment, air is added while water is injected, whether the cylinder body overflows or not is monitored through the humidity detector, the cylinder body monitoring is completed, the detection efficiency is improved through double detection, the accuracy of a detection result is also improved, and the quality of the cylinder body can be well controlled.
3. The invention provides a crack detection device and method for an automobile casting cylinder body.
4. The invention provides a crack detection device and method for an automobile casting cylinder body, wherein an annular heating pipe in a water storage tank heats water stored in the water storage tank to a required temperature and then carries out heat preservation, hot water is injected into the cylinder body to be detected by heating the water and utilizing the principle of expansion with heat and contraction with cold during detection, if cracks exist on the surface, the overflow is more obvious under the influence of the hot water, the cracks are more easily detected, and the detection speed is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the overall structure of the present invention;
FIG. 3 is a fragmentary structural exploded view of the present invention;
FIG. 4 is a schematic structural view of a clamping device according to the present invention;
FIG. 5 is a schematic view of the connection structure of the cylinder and the upper platen according to the present invention;
FIG. 6 is a bottom view of the upper platen structure of the present invention;
FIG. 7 is a schematic view of a lower platen structure according to the present invention;
FIG. 8 is an exploded view of the structure of the lower platen and the cylinder to be tested according to the present invention;
FIG. 9 is a schematic view of the structure of the water injection device of the present invention;
FIG. 10 is a sectional view of the water storage tank structure of the present invention.
In the figure: 1. fixing the bottom plate; 11. a side plate; 12. a support plate; 13. positioning the guide rod; 131. a compression spring; 2. a control box; 3. a water injection device; 31. a water storage tank; 32. a water delivery pipe; 33. heating a tube; 4. an air pump; 5. a clamping and pressing device; 51. a cylinder; 52. an upper pressure plate; 521. an air inlet; 522. a water injection port; 53. a lower pressing plate; 531. a guide groove; 54. a clamping groove; 541. a seal ring pad; 542. an annular seal groove; 6. a cylinder to be detected; 61. an upper sealing sleeve; 62. a lower sealing sleeve; 7. a detection component; 71. a pressure sensor; 72. and a moisture detector.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, a crack detection device for a cast cylinder body of an automobile comprises a fixed base plate 1, two ends of the fixed base plate 1 are provided with side plates 11, a control box 2 is installed on the side plate 11 at the front end, a supporting plate 12 is fixed at the top end of the side plate 11 at the two ends, a water injection device 3, an air pump 4 and a clamping device 5 are fixed on the supporting plate 12, the water injection device 3 and the air pump 4 are arranged at two sides of the clamping device 5, a cylinder body 6 to be detected is arranged between the fixed base plate 1 and the clamping device 5, positioning guide rods 13 are fixed on four sides of the fixed base plate 1, a positioning guide rod 13 is arranged below the clamping device 5, a detection assembly 7 is arranged in the clamping device 5, the detection assembly 7 is electrically connected with the control box 2, the positioning guide rods 13 are arranged in four groups, an extrusion spring 131 is sleeved on the positioning guide rod 13 between the fixed base plate 1 and a lower pressing plate 53, an extrusion spring, in the clamping process, the four corners of the lower pressing plate 53 of the upper pressing plate 52 are extruded by the extrusion springs 131 at the upper end and the lower end of the positioning guide rod 13, so that the upper pressing plate 52 and the lower pressing plate 53 are stressed uniformly in the pressing process, the flatness of a pressing surface is guaranteed, the sealing performance of the inner part is better guaranteed, the pressure born by the two pressing plates is reduced by the arrangement of the extrusion springs 131, the buffering force is given to the pressing plates, and the service life of the pressing plates is prolonged.
Referring to fig. 4-6, the clamping device 5 includes an air cylinder 51, an upper pressing plate 52, a lower pressing plate 53 and a clamping groove 54, the air cylinder 51 is fixed on the supporting plate 12, an output rod of the air cylinder 51 penetrates through the supporting plate 12 and is fixed on the top end of the upper pressing plate 52, guide grooves 531 are formed at four corners of the upper pressing plate 52 and the lower pressing plate 53, the upper pressing plate 52 and the lower pressing plate 53 are sleeved on the positioning guide rod 13 through the guide grooves 531, the lower pressing plate 53 is disposed below the upper pressing plate 52, the clamping groove 54 is formed on a clamping surface between the upper pressing plate 52 and the lower pressing plate 53, an air inlet 521 and a water filling opening 522 are formed in the clamping groove 54 of the upper pressing plate 52, the air inlet 521 and the water filling opening 522 are respectively connected with the water filling device 3 and the air pump 4, the detection assembly 7 includes a pressure sensor 71 and a humidity detector 72, the pressure sensor 71 is disposed in the middle of the clamping groove 54 in the upper pressing plate 52, the pressure sensor 71 and the humidity detector 72 are both wirelessly connected with the control box 2, and after the cylinder body 6 to be detected is placed, the cylinder 51 operates to drive the upper pressing plate 52 to press downwards, the upper pressing plate 52 and the lower pressing plate 53 press the cylinder body 6 to be detected tightly, a sealed space is formed in the cylinder body 6 to be detected, the air pump 4 is used for delivering air into the extruded cylinder body 6 to be detected, the pressure sensor 71 is used for detecting the air pressure in the cylinder body 6 to be detected, when the air pressure value reaches a stable value, the pressure sensor 71 continuously monitors, if the air pressure value gradually decreases and cracks may occur in the cylinder body 6 to be detected, water can be injected into the cylinder body 6 to be detected through the water injection device 3 at this time, gas filling is carried out while water injection is carried out, the humidity detector 72 monitors whether the cylinder body overflows or not, cylinder body monitoring is completed, through dual detection, improve detection efficiency, also improve the precision of testing result, can carry out fine the accuse to the cylinder body quality.
Referring to fig. 7-8, sealing ring pads 541 are disposed in the clamping grooves 54 of the upper platen 52 and the lower platen 53, an annular sealing groove 542 is formed in each sealing ring pad 541, the upper and lower end faces of the cylinder body 6 to be detected are respectively sleeved with the upper sealing sleeve 61 and the lower sealing sleeve 62, the upper sealing sleeve 61 and the lower sealing sleeve 62 are in inserted sealing connection with the annular sealing groove 542, before detection, the upper sealing sleeve 61 and the lower sealing sleeve 62 are respectively sleeved on the two ends of the cylinder body 6 to be detected, the cylinder body 6 to be detected which is sleeved is placed in the clamping groove 54 of the lower platen 53 to be detected, when the sealing sleeves at the upper and lower ends of the cylinder body 6 to be detected are pressed with the sealing ring pads, the rubber rings are tightly attached, the upper and lower ends of the cylinder body 6 to be detected are firmly sealed under the action of pressure, the internal sealing performance is ensured, the loss of the cylinder body by.
Referring to fig. 9-10, the water injection device 3 includes a water storage tank 31, a water pipe 32 and a heating pipe 33, the inner wall of the water storage tank 31 is installed with the annular heating pipe 33, the upper end of the water storage tank 31 is provided with a water inlet, the lower part of the water storage tank 31 is connected with the water pipe 32, the water pipe 32 is installed with an electromagnetic valve, the micro end of the water pipe 32 is hermetically connected with the water injection port 522, before hot water is injected into the cylinder body 6 to be detected, the annular heating pipe 33 in the water storage tank 31 heats the water stored in the water storage tank 31 to a required temperature and then keeps the temperature, when detecting, the hot water is injected into the cylinder body 6 to be detected by heating the water and utilizing the principle of thermal expansion and cold contraction, if cracks exist on the surface, under the influence of the hot water, the.
In order to better show the crack detection process of the crack detection device for the cast cylinder body of the automobile, the embodiment provides a crack detection method of the crack detection device for the cast cylinder body of the automobile, which comprises the following steps:
the method comprises the following steps: before detection, an upper sealing sleeve 61 and a lower sealing sleeve 62 are respectively sleeved on two end heads of the cylinder body 6 to be detected, and then the sleeved cylinder body 6 to be detected is placed in a clamping groove 54 of a lower pressing plate 53 to enter the cylinder body to be detected;
step two: after the cylinder body 6 to be detected is placed, the rear air cylinder 51 operates to drive the upper pressing plate 52 to press downwards, the cylinder body 6 to be detected is pressed tightly by the upper pressing plate 52 and the lower pressing plate 53, the air is conveyed into the extruded cylinder body 6 to be detected through the air pump 4, and the pressure sensor 71 detects the air pressure in the cylinder body 6 to be detected;
step three: after the pressure sensor 71 detects the pressure change, the water injection device 3 injects hot water into the extruded cylinder body 6 to be detected, and the moisture detector 72 detects whether water overflows outside the cylinder body, so as to detect whether cracks exist in the cylinder body.
In summary, the device and the method for detecting cracks in the cylinder body of the cast cylinder of the automobile, provided by the invention, are characterized in that the extrusion springs 131 at the upper end and the lower end of the positioning guide rod 13 extrude four corners of the lower pressing plate 53 of the upper pressing plate 52, so that the upper pressing plate 52 and the lower pressing plate 53 are uniformly stressed in the pressing process, the flatness of the pressing surface is ensured, and the internal sealing performance is better ensured, in addition, the arrangement of the extrusion springs 131 reduces the pressure born by the two pressing plates, a buffering force is provided for the pressing plates, the service life of the pressing plates is prolonged, a sealed space is formed in the cylinder body 6 to be detected, the air is conveyed into the extruded cylinder body 6 to be detected through the air pump 4, the pressure sensor 71 detects the air pressure in the cylinder body 6 to be detected, when the air pressure value reaches a stable value, the pressure sensor 71 continuously monitors, if the air pressure value gradually decreases, cracks may occur in the cylinder body 6, the cylinder body is aerated while water is injected, the humidity detector 72 monitors whether the cylinder body overflows or not, cylinder body monitoring is completed, detection efficiency is improved and accuracy of a detection result is also improved through double detection, cylinder body quality can be well controlled, an upper sealing sleeve 61 and a lower sealing sleeve 62 are sleeved on two ends of the cylinder body 6 to be detected respectively, the sleeved cylinder body 6 to be detected is placed in a clamping groove 54 of a lower pressing plate 53 to enter the cylinder body to be detected, when the sealing sleeves at the upper end and the lower end of the cylinder body 6 to be detected are pressed with a sealing ring pad 541, a rubber ring is tightly attached, the upper end and the lower end of the cylinder body 6 to be detected are firmly sealed under the action of pressure, internal sealing performance is guaranteed, loss of the cylinder body by direct pressing is reduced, detection environment stability is improved, the annular heating pipe 33 in the water storage tank 31 heats water stored in the water storage tank 31 to, when detecting, through heating water, utilize expend with heat and contract with cold's principle, pour into hot water into and wait to detect cylinder body 6 in, if there is the crackle on the surface, under the influence of hot water, it is more obvious that overflow, and it is detected more easily, improves detection speed.
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 able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (9)
1. The utility model provides an automobile casting cylinder body crack detection device which characterized in that: including PMKD (1), the both ends of PMKD (1) set up curb plate (11), install control box (2) on curb plate (11) of front end, top fixed support board (12) of both ends curb plate (11), fixed water injection device (3), air pump (4) and nip pressure device (5) are gone up in backup pad (12), and water injection device (3) and air pump (4) set up the both sides at nip pressure device (5), set up between PMKD (1) and nip pressure device (5) and wait to detect cylinder body (6), four sides are fixed with location guide bar (13) on PMKD (1), and nip pressure device (5) below sets up location guide bar (13), set up in nip pressure device (5) and detect subassembly (7), detect subassembly (7) are connected with control box (2) electricity.
2. The crack detection device for the cast cylinder block of the automobile according to claim 1, wherein: the clamping device (5) comprises an air cylinder (51), an upper pressing plate (52), a lower pressing plate (53) and a clamping groove (54), wherein the air cylinder (51) is fixed on a supporting plate (12), an output rod of the air cylinder (51) penetrates through the supporting plate (12) and is fixed to the top end of the upper pressing plate (52), the four corners of the upper pressing plate (52) and the lower pressing plate (53) are provided with guide grooves (531), the upper pressing plate (52) and the lower pressing plate (53) are sleeved on a positioning guide rod (13) through the guide grooves (531), the lower pressing plate (53) is arranged below the upper pressing plate (52), and the clamping groove (54) is formed in a clamping surface between the upper pressing plate (52) and the lower pressing plate (53).
3. The crack detection device for the cast cylinder block of the automobile as claimed in claim 2, wherein: an air inlet (521) and a water filling port (522) are formed in a clamping groove (54) of the upper pressing plate (52), and the air inlet (521) and the water filling port (522) are respectively connected with an air pump (4) and a water filling device (3).
4. The crack detection device for the cast cylinder block of the automobile as claimed in claim 2, wherein: all set up sealing washer pad (541) in the pressure clamping groove (54) of top board (52) and holding down plate (53), start annular seal groove (542) in sealing washer pad (541), and wait to detect cylinder body (6) upper and lower terminal surface and cup joint seal cover (61) and seal cover (62) down respectively, go up seal cover (61) and seal cover (62) down and annular seal groove (542) plug-in sealing connection.
5. The crack detection device for the cast cylinder block of the automobile according to claim 1, wherein: the water injection device (3) comprises a water storage tank (31), a water conveying pipe (32) and a heating pipe (33), wherein the annular heating pipe (33) is installed in the inner wall of the water storage tank (31), a water inlet is formed in the upper end of the water storage tank (31), the water conveying pipe (32) is connected to the lower portion of the water storage tank (31), an electromagnetic valve is installed on the water conveying pipe (32), and the micro end of the water conveying pipe (32) is hermetically connected with a water injection port (522).
6. The crack detection device for the cast cylinder block of the automobile according to claim 1, wherein: the detection assembly (7) comprises a pressure sensor (71) and a humidity detector (72), the pressure sensor (71) is arranged in the middle of a clamping groove (54) in the upper pressing plate (52), the humidity detector (72) is arranged on the lower pressing plate (53), and the pressure sensor (71) and the humidity detector (72) are both in wireless connection with the control box (2).
7. The crack detection device for the cast cylinder block of the automobile according to claim 1, wherein: the four groups of positioning guide rods (13) are arranged, the positioning guide rods (13) between the fixed base plate (1) and the lower pressing plate (53) are sleeved with the extrusion springs (131), and the positioning guide rods (13) between the supporting plate (12) and the upper pressing plate (52) are also sleeved with the extrusion springs (131).
8. A crack detection method of the crack detection device of the cast cylinder block of the automobile according to claims 1 to 7, characterized in that: the method comprises the following steps:
the method comprises the following steps: before detection, an upper sealing sleeve (61) and a lower sealing sleeve (62) are respectively sleeved on two end heads of a cylinder body (6) to be detected, and the sleeved cylinder body (6) to be detected is placed in a clamping groove (54) of a lower pressing plate (53) to enter the cylinder body to be detected;
step two: the rear air cylinder (51) is operated after the cylinder body (6) to be detected is placed, the upper pressing plate (52) is driven to press downwards, the cylinder body (6) to be detected is pressed tightly by the upper pressing plate (52) and the lower pressing plate (53), the air is conveyed into the extruded cylinder body (6) to be detected through the air pump (4), and the air pressure in the cylinder body (6) to be detected is detected by the pressure sensor (71);
step three: after the pressure sensor (71) detects the pressure change, the water injection device (3) injects hot water into the extruded cylinder body (6) to be detected, and the moisture detector (72) detects whether water overflows from the outer side of the cylinder body, so that whether cracks exist in the cylinder body is detected.
9. The crack detection method of the crack detection device of the cast cylinder block of the automobile according to claim 8, characterized in that: aiming at the third step, before hot water is injected into the cylinder body (6) to be detected, the annular heating pipe (33) in the water storage tank (31) heats the water stored in the water storage tank (31) to the required temperature and then carries out heat preservation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010542216.6A CN111504847A (en) | 2020-06-15 | 2020-06-15 | Crack detection device and method for automobile casting cylinder body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010542216.6A CN111504847A (en) | 2020-06-15 | 2020-06-15 | Crack detection device and method for automobile casting cylinder body |
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| CN111504847A true CN111504847A (en) | 2020-08-07 |
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| CN202010542216.6A Pending CN111504847A (en) | 2020-06-15 | 2020-06-15 | Crack detection device and method for automobile casting cylinder body |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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