CN113237620A - Anti-loosening performance detection device and detection method for fastener - Google Patents
Anti-loosening performance detection device and detection method for fastener Download PDFInfo
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- CN113237620A CN113237620A CN202110423928.0A CN202110423928A CN113237620A CN 113237620 A CN113237620 A CN 113237620A CN 202110423928 A CN202110423928 A CN 202110423928A CN 113237620 A CN113237620 A CN 113237620A
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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
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/025—Measuring arrangements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/24—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed
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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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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention provides a check performance detection device and a check method of a fastener, comprising a base, a vibration table, a positioning seat, a clamping device, a supporting seat and a protection device, wherein the vibration table, the positioning seat, the clamping device, the supporting seat and the protection device are arranged on the base; the protection device comprises an installation platform, a guide rail and a positioning device, wherein the installation platform is concentric with the protection device, so that a fitting piece can be conveniently aligned to the center, and the guide rail is used for aligning the fitting piece; clamping device still including being used for removing and supporting clamping device and can follow the removal seat that guide rail length direction removed, every removes and installs telescopic cylinder one between seat and the clamping device, guide rail one side is installed and is used for supporting and makes the telescopic cylinder three of supporting seat along the up-and-down direction motion, the fitting piece passes protector one end and installs the rubber sleeve that is used for the centering and the magnet that corresponds with the magnet on the positioner, still overlap on the fitting piece and be equipped with the nut gasket that is convenient for fastening nut screws.
Description
Technical Field
The invention belongs to the technical field of fastener anti-loosening detection, and particularly relates to a device and a method for detecting anti-loosening performance of a fastener.
Background
The fastener belongs to one of the extremely extensive parts of application among the mechanical part, the fastener is used extensively in trades such as electron, electrical apparatus, machinery, chemical industry, because the fastener is standardized, serialization, the degree of universalization is very high, therefore the fastener is the quality management and control in the production, need through the detection in aspects such as outward appearance, size, performance, wait to detect qualified later on can come into operation, wherein one of the most important performance detection is locking performance, because the fastener uses as fastening connection, if equipment appears taking off in the use serious can cause the incident, consequently need use the equipment that detects the precision height to detect locking fastener performance detection.
If a publication number is CN211651995U, a transverse vibration test device for a threaded fastener is disclosed, which comprises a test base, a speed regulating motor supporting seat, a vibration workbench, a movable plate, a compression gasket, a bolt and nut gasket, a conical block, an upper sensor gasket, a lower sensor gasket, a gasket type force sensor, a force transmission sleeve, a test bolt, a test nut and a transverse vibration connecting plate, wherein the conical block is arranged on the movable plate, the test bolt can pass through the conical block and is in threaded connection with the test nut, the bolt and nut gasket is sleeved on the test bolt, the compression gasket is sleeved on the outer wall of the test nut, the transverse vibration test device for the threaded fastener can effectively adjust the displacement of the test and can adapt to different test conditions, the practicality is good, and through bolted connection's setting between experimental base and adjustable speed motor supporting seat and the vibration workstation, can realize the quick installation dismantlement of anchor clamps.
In the vibration test technology of the existing threaded fastener, the test bolt is adopted to test the matching of the nut, the bolt is not firmly clamped, the rotation of the bolt in vibration can influence the test result, and if the fasteners with different sizes need to be tested, the clamp needs to be replaced, the required installation time is long, only one standard fastener can be tested, and other unqualified fasteners can not be used, so that the resource waste is caused.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a device and a method for detecting the anti-loosening performance of a fastener.
The invention provides the following technical scheme:
the invention discloses a device for detecting the anti-loosening performance of a fastener, which comprises a base, a vibration table, a positioning seat, a clamping device and a supporting seat, wherein the vibration table is arranged on the base and used for carrying out vibration detection on the fastener, the positioning seat is used for adjusting the centering of a matching piece, the clamping device is used for clamping the matching piece, the supporting seat is used for supporting the matching piece, and the device also comprises a protective device which is arranged on the vibration table and used for protecting the positioning seat, the clamping device and the supporting seat.
Furthermore, the protection device comprises a mounting table which is mounted on the positioning seat and used for supporting the positioning seat, and the guide rail is concentric with the protection device, is convenient for aligning the fitting piece with the center and is used for aligning the fitting piece; clamping device still including being used for removing and supporting clamping device and can follow the removal seat that guide rail length direction removed, every removes and installs telescopic cylinder one between seat and the clamping device, guide rail one side is installed and is used for supporting and makes the telescopic cylinder three of supporting seat along the up-and-down direction motion, the fitting piece passes protector one end and installs the rubber sleeve that is used for the centering and the magnet that corresponds with the magnet on the positioner, still overlap on the fitting piece and be equipped with the nut gasket that is convenient for fastening nut screws.
The invention also provides another implementation mode, which is used for detecting the threaded fastener in a pressure detection mode, and the specific structure is as follows: the vertical plate is installed on the base and used for supporting a screw rod, a first motor used for driving the screw rod to rotate is used for supporting the mounting seat and a threaded sliding block connected with the screw rod in a threaded mode, the vertical plate further comprises a pressure detection mechanism installed on the base and used for carrying out pressure detection on a fastener, the pressure detection mechanism comprises a mounting seat used for clamping a fastening nut, the fastening nut is installed in the mounting seat through a telescopic cylinder IV, a channel convenient for movement of a balance plate is arranged in the mounting seat, a vertical rod is installed on one side of the balance plate through a spring III, and a pressure sensor is installed on one side of the mounting seat far away from the vertical rod.
Furthermore, a magnet for centering the matching piece is also arranged in the positioning seat; a first spring is arranged between one side of the positioning seat and the inner wall of the protection device, so that the positioning seat can absorb vibration and buffer to a certain extent.
Furthermore, the positioning device is arranged on one side, close to the positioning seat, of the clamping device, moves along with the linear movement of the telescopic cylinder II driving the moving seat along the left and right directions, and magnets used for centering the matching pieces are arranged on two sides of the positioning device; the positioning device is arranged in the groove of the clamping device through a second spring, and when the magnet on the positioning device and the magnet on the positioning seat are attracted, the clamping device is pushed by the first telescopic cylinder to clamp the matching piece.
Further, be equipped with the seal groove on the protector, the closing plate is installed in the seal groove, the balance plate is located and installs the pull rod between the four telescopic links of one side and telescopic cylinder in the channel, and the pull rod passes the mount pad, still be equipped with on the guide rail and prevent to remove the bumping post that the seat breaks away from the guide rail, mount pad one side is equipped with motor two, installs the bracing piece that is used for supporting motor two between motor two and the screw thread slider.
Based on the device, the invention also provides a detection method of the device for detecting the looseness-proof performance of the fastener, which comprises the following steps:
the method comprises the following steps: the movable seat is pushed by the telescopic cylinder II, so that a magnet on a positioning device arranged on the clamping device is attracted with a magnet in the positioning seat, and clamping and centering are carried out;
step two: the rubber sleeve is sleeved on one side of the matching piece and is placed into the protective device, and then preliminary support is carried out through the supporting seat;
step three: after the magnet on the rubber sleeve is attracted with the magnet on the positioning device, the clamping device moves to the clamping matching piece along the direction of the matching piece through the telescopic cylinder;
step four: the height of the supporting seat is further adjusted through the telescopic cylinder III to stably support the matching piece, the fastening nut is screwed on the matching piece through the digital display torque wrench, and the numerical value of the digital display torque wrench is recorded;
step five: the starting vibration table carries out vibration detection on the fastening nut, the fastening nut is screwed down by using the digital display torque wrench after a period of time, the numerical value displayed at the moment is compared with the numerical value recorded for the first time, and the anti-loosening performance of the fastening nut is judged.
Based on the other device for detecting through the pressure detection, the invention also provides a detection method of the device for detecting the looseness-proof performance of the fastener, which comprises the following steps:
the method comprises the following steps: the fastening nut is installed on the telescopic cylinder IV, the motor I is started, the screw rotates, and the threaded sliding block enables the installation seat to move linearly;
step two: starting a second motor, rotating the mounting seat to enable the fastening nut to be screwed on the mating piece, and retracting the fourth telescopic cylinder to release the fastening nut;
step three: the first motor drives the screw to rotate reversely, the mounting seat moves until the pressure sensor is aligned with one side of the fastening nut, and the fourth telescopic cylinder retracts slowly and moves synchronously with the mounting seat;
step four: one end of the balance plate provided with the pull rod is lifted, and the other end of the balance plate is lowered to the side, located on the fastening nut, of the pressure sensor, so that pressure detection is carried out.
The invention has the beneficial effects that:
1. the vibration table is arranged on the base to carry out vibration test on the fasteners, so that the accuracy of test results is improved, and the fasteners with high quality can be screened out.
2. Through the rubber sleeve, the positioning seat, the magnet and the centering of the positioning adjusting mechanism automatic adjustment fitting piece which are provided with the magnet and arranged on the fastener, the fastening nut is convenient to screw, the centering time is saved, and the screwing efficiency is improved.
3. The pressure detection mechanism is arranged on the base, the anti-loosening performance of the fastener is detected by the pressure detection mechanism, the fastener suitable for stable movement is screened out, and the cost is saved.
4. Through installing two kinds of different detection methods, screen the fastener of different levels, reduce the waste, resources are saved.
5. The supporting piece is stably supported through the clamping device and the supporting seat in the detection, the detection result is prevented from being influenced by the rotation of the supporting piece in the vibration test, and the accuracy of the detection result is improved.
6. When the detection device is not used, the sealing plate is installed in the sealing groove, foreign matters such as external dust are prevented from entering, and the service life of the detection device is prolonged.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a cross-sectional view of the shield apparatus of the present invention;
fig. 3 is a cross-sectional view of the mount of the present invention.
Labeled as: 100. a vibration table; 101. a guard; 1011. a sealing groove; 102. a magnet; 103. a first spring; 104. positioning seats; 105. an installation table; 106. a guide rail; 107. a clamping device; 108. a second telescopic cylinder; 109. a rubber sleeve; 110. a nut washer; 111. a mating member; 112. a supporting seat; 113. a positioning device; 114. a movable seat; 115. a telescopic cylinder I; 116. a bumping post; 117. a telescopic cylinder III; 118. a sealing plate; 119. a second spring;
200. a pressure detection mechanism; 201. a second motor; 202. a support bar; 203. a first motor; 204. a vertical plate; 205. a threaded slider; 206. a screw; 207. a pressure sensor; 208. erecting a rod; 209. a third spring; 210. a balance plate; 211. a pull rod; 212. a mounting seat; 2121. a channel; 213. a telescopic cylinder IV; 300. a base; 400. and (5) tightening the nut.
Detailed Description
Example one
As shown in fig. 1 and fig. 3, the device for detecting the anti-loosening performance of the fastener comprises a base 300, a vibration table 100 which is installed on the base 300 and used for detecting vibration of the fastener, a positioning seat 104 which is used for adjusting the centering of a fitting piece 111, and a clamping device 107 which is used for clamping the fitting piece 111, wherein the clamping device 107 is located on one side of the positioning seat 104 and used for supporting a supporting seat 112 of the fitting piece 111, the supporting seat 112 is installed on a telescopic cylinder III 117, the device further comprises a protection device 101 which is installed on the vibration table 100 and used for protecting the positioning seat 104, the clamping device 107 and the supporting seat 112, and a magnet 102 which is used for centering the fitting piece 111 is also installed in the positioning seat 104; a first spring 103 is arranged between one side of the positioning seat 104 and the inner wall of the protective device 101, so that the positioning seat 104 can damp and buffer to a certain extent; the protection device 101 comprises a mounting table 105 mounted on the positioning seat 104 and used for supporting the positioning seat 104, the mounting table is arranged concentrically with the protection device 101, a fitting piece 111 is convenient to center, a guide rail 106 is used for centering the fitting piece 111, and a stop column 116 for preventing the moving seat 114 from being separated from the guide rail is further arranged on the guide rail 106.
The clamping device 107 further comprises a moving seat 114 which is used for moving and supporting the clamping device 107 and can move along the length direction of the guide rail 106, a telescopic cylinder I115 is installed between each moving seat 114 and the clamping device 107, a telescopic cylinder III 117 which is used for supporting and enabling the supporting seat 112 to move in the up-and-down direction is installed on one side of the guide rail 106, a matching piece 111 penetrates through one end of the protection device 101 and is provided with a rubber sleeve 109 used for centering and a magnet 102 corresponding to the magnet 102 on the positioning device 113, a nut gasket 110 which is convenient for tightening the fastening nut 400 is further sleeved on the matching piece 111, the nut gasket 110 is located on one side of the protection device 101, a sealing groove 1011 is formed in the protection device 101, and the sealing plate 118 is installed in the sealing groove 1011.
The positioning device 113 is arranged on one side of the clamping device 107 close to the positioning seat 104, the positioning device 113 moves along with the linear movement of the telescopic cylinder II 108 driving the moving seat 114 along the left-right direction, and the magnets 102 for centering the matching piece 111 are arranged on two sides of the positioning device 113; the positioning device 113 is arranged in the groove of the clamping device 107 through a second spring 119, and when the magnet 102 on the positioning device 113 and the magnet 102 on the positioning seat 104 are attracted, the clamping device 107 is pushed to clamp the mating piece 111 through a first telescopic cylinder 115.
The invention also discloses a detection method of the device for detecting the looseness-proof performance of the fastener, which comprises the following steps: the movable seat 114 is pushed through the telescopic cylinder II 108, so that the magnet 102 arranged on the positioning device 113 is attracted with the magnet 102 in the positioning seat 104, and clamping and centering are carried out; the rubber sleeve 109 is sleeved on one side of the fitting piece 111 and is placed into the protection device 101, and at the moment, preliminary support is carried out through the supporting seat 112; after the magnet 102 on the rubber sleeve 109 is attracted with the magnet 102 on the positioning device 113, the clamping device 107 moves to the direction of the mating piece 111 to clamp the mating piece 111 through the telescopic cylinder I115; the height of the supporting seat 112 is further adjusted through the telescopic cylinder III 117 to stably support the matching piece 111, the fastening nut 400 is screwed on the matching piece 111 through the digital display torque wrench, and the numerical value of the digital display torque wrench is recorded; the vibration table 100 is started to vibrate and detect the fastening nut 400, the fastening nut 400 is screwed down by using a digital display torque wrench after a period of time, the numerical value displayed at the moment is compared with the numerical value recorded for the first time, and the anti-loosening performance of the fastening nut is judged.
The maximum vibration that can bear the fastener is debugged earlier, can directly perceived accurate assay go out the locking performance of fastener through digital display torque wrench, through the vibration frequency of adjusting the shaking table, is applicable to the detection that requires different fasteners.
The working principle of the fastener anti-loosening performance detection device disclosed by the invention is as follows: firstly, the second telescopic cylinder 108 pushes the moving seat 114 until the magnet 102 on the positioning device 113 and the magnet 102 on the positioning seat 104 are attracted to finish centering adjustment, when the fitting piece 111 is put into the protection device 101, the supporting seat 112 initially plays a supporting role, when the magnet 102 on the rubber sleeve 109 and the magnet 102 on the positioning device 113 are attracted, the first telescopic cylinder 115 pushes the clamping device 107 to firmly clamp the fitting piece 111, so as to prevent the fitting piece 111 from rotating during the vibration process to influence the detection result, the third telescopic cylinder 117 adjusts the position of the supporting seat 112 to further support the fitting piece 111, the fastening nut 400 is screwed on the fitting piece 111 through the digital display torque wrench, the numerical value at the moment is recorded, the vibration table 100 is started, the fastening nut 400 is screwed down from the fitting piece 111 after a period of time, the numerical value at the moment of screwing down is recorded and compared with the numerical value during screwing, and the larger the numerical value difference, the worse the anti-loosening capability and the opposite are realized.
Example two
The implementation is to add a pressure detection mode for detection, the rest of the structure and principle are the same as those of the first embodiment, and are not repeated herein, as shown in fig. 1 and fig. 2, the device for detecting the anti-loosening performance of the fastener further includes a vertical plate 204 installed on the base 300 for supporting the screw 206, a first motor 203 for driving the screw 206 to rotate, a threaded slider 205 for supporting the mounting seat 212 and in threaded connection with the screw 206, and further includes a pressure detection mechanism 200 installed on the base 300 for detecting the pressure of the fastener, the pressure detection mechanism 200 includes a mounting seat 212 for clamping the fastening nut 400, the fastening nut 400 is installed in the mounting seat 212 through a telescopic cylinder four 213, a channel 2121 for facilitating the movement of the balance plate 210 is arranged in the mounting seat 212, a vertical rod 208 is installed on one side of the balance plate 210 through a spring three 209, and a pressure sensor 207 is installed on one side of the vertical rod 208 away from the mounting seat 212, the elastic force of the spring III 209 is smaller than the pressure to the pressure sensor 207 when the fastening nut 400 is loosened, a pull rod 211 is arranged between one side, located in the channel 2121, of the balance plate 210 and the telescopic rod of the telescopic cylinder IV 213, the pull rod 211 penetrates through the mounting seat 212, a motor II 201 is arranged on one side of the mounting seat 212, and a supporting rod 202 used for supporting the motor II 201 is arranged between the motor II 201 and the threaded sliding block 205.
Based on the device for detecting through the pressure detection, the invention also provides a detection method of the device for detecting the looseness-proof performance of the fastener, which comprises the following steps: the fastening nut 400 is installed on the telescopic cylinder IV 213, the motor I203 is started, the screw 206 rotates, and the threaded sliding block 205 enables the installation seat 212 to move linearly; starting the second motor 201, rotating the mounting seat 212 to enable the fastening nut 400 to be screwed on the fitting piece 111, and retracting the fourth telescopic cylinder 213 to release the fastening nut 400; the first motor 203 drives the screw rod 206 to rotate reversely, the mounting seat 212 moves to the position where the pressure sensor 207 is aligned with one side of the fastening nut 400, and the telescopic cylinder four 213 retracts slowly and moves synchronously with the mounting seat 212; the balance plate 210 is installed with one end of the pull rod 212 raised and the other end lowered until the pressure sensor 207 is located at the fastening nut 400 side, and pressure detection is performed.
Still can add pressure detection on vibration detection's basis, can select the fastener of different levels through detecting, pressure detection is qualified but the unqualified fastener of vibration detection is applicable on steady equipment, and vibration detection is qualified applicable uses in the equipment that vibration frequency is big for the high-usage of fastener reduces extravagantly.
The working principle of the fastener anti-loosening performance detection device disclosed by the invention is as follows: firstly, pressure detection is carried out, then vibration detection is carried out, on the basis of the first embodiment, the fastening nut 400 is installed in the installation seat 212 through the four telescopic cylinders 213, the first motor 203 drives the screw rod 206 to rotate, the threaded slider 205 moves linearly to enable the installation seat 212 to move along with the threaded slider 205, the installation seat 212 and the threaded slider 205 are movably installed, the second motor 201 enables the installation seat 212 to rotate at a certain speed to tighten the fastening nut 400, the first motor 203 drives the screw rod 206 to rotate reversely, the four telescopic cylinders 213 slowly retract to loosen the fastening nut 400, the pull rod 211 pushes up one side of the balance plate 210, the other side of the balance plate 210 descends, when the fastening nut 400 is completely loosened, the pressure sensor 207 is close to one side of the fastening nut 400, the fastening nut 400 is loosened, the pressure sensor 207 moves towards one side of the pressure sensor 207, the pressure sensor 207 sends a signal, the anti-loosening performance of the fastening nut 400 is poor, and otherwise, the anti-loosening performance is good.
The method for detecting the looseness-proof performance of the fastener disclosed by the invention has the advantages that when the looseness-proof performance of the fastener is detected by using vibration, the detection result is more accurate, the detection speed is improved, the fastener detected by using pressure detection is suitable for the occasion with stable motion, the utilization rate of the fastener is improved, and the waste is avoided.
Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A check performance detection device of a fastener comprises a base (300), a vibration table (100) installed on the base (300) and used for vibration detection of the fastener, a positioning seat (104) used for centering an adjusting fitting piece (111), a clamping device (107) used for clamping the fitting piece (111), and a supporting seat (112) used for supporting the fitting piece (111), and is characterized in that: the device also comprises a protective device (101) which is arranged on the vibration table (100) and used for protecting the positioning seat (104), the clamping device (107) and the supporting seat (112);
the protection device (101) comprises a mounting table (105) which is mounted on the positioning seat (104) and used for supporting the positioning seat (104), and a guide rail (106) which is arranged concentrically with the protection device (101), is convenient for a fitting piece (111) to be centered and is used for centering the fitting piece (111); clamping device (107) still including be used for removing clamping device (107) and supporting and can follow removal seat (114) that guide rail (106) length direction removed, every removes and installs telescopic cylinder (115) between seat (114) and clamping device (107), guide rail (106) one side is installed and is used for supporting and makes supporting seat (112) along the telescopic cylinder three (117) of up-and-down direction motion, fitting piece (111) pass protector (101) one end and install rubber sleeve (109) that are used for the centering and magnet (102) that correspond with magnet (102) on positioner (113), still the cover is equipped with nut gasket (110) that are convenient for fastening nut (400) to screw on fitting piece (111).
2. The anti-loosening performance detection device for the fastener according to claim 1, comprising a vertical plate (204) installed on the base (300) and used for supporting the screw rod (206), a first motor (203) used for driving the screw rod (206) to rotate, and a threaded sliding block (205) used for supporting the installation seat (212) and in threaded connection with the screw rod (206), wherein: still including installing pressure measurement mechanism (200) that is used for carrying out pressure measurement to the fastener on base (300), pressure measurement mechanism (200) is including mount pad (212) that is used for pressing from both sides tight fastening nut (400), and fastening nut (400) are installed in mount pad (212) through four (213) telescopic cylinder, be equipped with channel (2121) that are convenient for balance plate (210) motion in mount pad (212), pole setting (208) are installed through spring three (209) in balance plate (210) one side, and pressure sensor (207) are installed to mount pad (212) one side is kept away from in pole setting (208).
3. The check performance detecting device of a fastener according to claim 1, characterized in that: a magnet (102) used for centering a fitting piece (111) is also arranged in the positioning seat (104); a first spring (103) is arranged between one side of the positioning seat (104) and the inner wall of the protective device (101), so that the positioning seat (104) can damp and buffer to a certain extent.
4. The check performance detecting device of a fastener according to any one of claims 1 to 3, characterized in that: the positioning device (113) is arranged on one side, close to the positioning seat (104), of the clamping device (107), the positioning device (113) moves along with the linear movement of the telescopic cylinder II (108) driving the moving seat (114) along the left and right directions, and magnets (102) used for centering the matching piece (111) are arranged on two sides of the positioning device (113); the positioning device (113) is arranged in a groove of the clamping device (107) through a second spring (119), and when the magnet (102) on the positioning device (113) and the magnet (102) on the positioning seat (104) are attracted, the clamping device (107) is pushed to clamp the matching piece (111) through the first telescopic cylinder (115).
5. The check performance detecting device of a fastener according to claim 1, characterized in that: a sealing groove (1011) is formed in the protection device (101), and a sealing plate (118) is installed in the sealing groove (1011).
6. The check performance detecting device of a fastener according to claim 2, characterized in that: and a pull rod (211) is arranged between one side of the balance plate (210) positioned in the channel (2121) and the telescopic rod of the four telescopic cylinders (213), and the pull rod (211) penetrates through the mounting seat (212).
7. The check performance detecting device of a fastener according to claim 1, characterized in that: the guide rail (106) is also provided with a stop column (116) for preventing the movable seat (114) from being separated from the guide rail.
8. The check performance detecting device of a fastener according to claim 2, characterized in that: and a second motor (201) is arranged on one side of the mounting seat (212), and a supporting rod (202) for supporting the second motor (201) is arranged between the second motor (201) and the threaded sliding block (205).
9. A detection method using the fastener looseness prevention performance detection device of claim 1, comprising the steps of:
a) the movable seat (114) is pushed through the telescopic cylinder II (108), so that the magnet (102) on the positioning device (113) arranged on the clamping device (107) is attracted with the magnet (102) in the positioning seat (104) to clamp and center;
b) the rubber sleeve (109) is sleeved on one side of the fitting piece (111) and is placed into the protective device (101), and at the moment, preliminary support is carried out through the supporting seat (112);
c) after the magnet (102) on the rubber sleeve (109) is attracted with the magnet (102) on the positioning device (113), the clamping device (107) moves to clamp the matching piece (111) in the direction of the matching piece (111) through the telescopic cylinder I (115);
d) the height of the supporting seat (112) is further adjusted through the telescopic cylinder III (117) to stably support the matching piece (111), the fastening nut (400) is screwed on the matching piece (111) through the digital display torque wrench, and the numerical value of the digital display torque wrench is recorded;
e) the vibration table (100) is started to vibrate and detect the fastening nut (400), the fastening nut (400) is screwed off by using the digital display torque wrench after a period of time, the numerical value displayed at the moment is compared with the numerical value recorded for the first time, and the anti-loosening performance of the fastening nut is judged.
10. A detection method using the fastener looseness prevention performance detection device of claim 2, comprising the steps of:
a) a fastening nut (400) is installed on a telescopic cylinder IV (213), a motor I (203) is started, a screw rod (206) rotates, and a threaded sliding block (205) enables an installation seat (212) to move linearly;
b) starting a second motor (201), rotating the mounting seat (212) to enable the fastening nut (400) to be screwed on the mating piece (111), and retracting the telescopic cylinder IV (213) to release the fastening nut (400);
c) the first motor (203) drives the screw rod (206) to rotate reversely, the mounting seat (212) moves to the position where the pressure sensor (207) is aligned with one side of the fastening nut (400), and the telescopic cylinder four (213) retracts slowly and moves synchronously with the mounting seat (212);
d) one end of the balance plate (210) is provided with a pull rod (212), and the other end is lifted and lowered to the side where the pressure sensor (207) is positioned on the fastening nut (400) for pressure detection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110423928.0A CN113237620B (en) | 2021-04-20 | 2021-04-20 | Locking performance detection device and method for fastener |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110423928.0A CN113237620B (en) | 2021-04-20 | 2021-04-20 | Locking performance detection device and method for fastener |
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| CN113237620A true CN113237620A (en) | 2021-08-10 |
| CN113237620B CN113237620B (en) | 2023-05-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN113237620B (en) | 2023-05-23 |
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