Multifunctional detection tool for bolts

Abstract

The application discloses a kind of multi-functional detection tool of bolt, including detection table, the detection table is opened and is provided with the accommodating groove of the die accommodation of the thread cooperation of outside and the bolt to be detected, the detection table is provided with the fixing member for fixing outside die, the detection table is provided with chassis, the chassis is opened and is provided with the perforation of the bolt to be detected by outside, the chassis is provided with the cooperation plate for being parallel with the top surface of the bolt to be detected outside, the detection table is provided with the driving member for applying torque to cooperation plate and the detection member for detecting the torque value of driving member, cooperation plate swing setting is in chassis and the limiting member for fixing cooperation plate after cooperation plate swing is set on chassis, the detection table is provided with the linkage member for making driving member and cooperation plate linkage connection.The application solves the problem that there is no detection tool for detecting the performance of bolt in the prior art.

Description

Technical Field

[0001] This invention relates to the field of bolt inspection tooling technology, specifically a multifunctional bolt inspection tooling. Background Technology

[0002] Bolts are a type of fastener consisting of a nut end and a threaded end, used in conjunction with a nut to fasten two parts with through holes. Currently, bolts require inspection after production, but this is typically done manually, which is inefficient. While some bolt testing fixtures exist, they can only test one property: compressive strength, tensile strength, tightening force, or shear strength. Therefore, multiple different testing fixtures are needed to test multiple bolt functions. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a multifunctional bolt testing fixture, which solves the problem of the lack of a testing fixture for testing multiple properties of bolts in the prior art.

[0004] To achieve the above objectives, the present invention provides a multifunctional bolt testing fixture, including a testing platform. The testing platform has a receiving groove for accommodating an external mold that mates with the threaded bolt to be tested. The testing platform is equipped with a fixing member for fixing the external mold. The testing platform has a base plate with a through hole for the external bolt to be tested to pass through. The base plate has a mating plate parallel to the top surface of the external bolt to be tested. The testing platform has a driving member for applying torque to the mating plate and a detection member for detecting the torque applied by the driving member. The mating plate is oscillating on the base plate, and the base plate has a limiting member for fixing the mating plate after oscillation. The testing platform also has a linkage member for linking the driving member and the mating plate.

[0005] The advantages of adopting the above technical solution are as follows: The operator installs the mold in the receiving groove and fixes it with fasteners. Then, the operator installs the chassis on the mold and the bolt to be tested on the mold. At this time, the bottom of the nut end of the bolt to be tested abuts against the top surface of the chassis, allowing the operator to apply torque to the mating plate through the driving component. The mating plate transmits the torque to the nut through the chassis. The detection component can then detect the torque applied by the driving component and transmit this value to the external intelligent control center, thereby achieving real-time detection. The value of the limiting component in the above technology is useful. After the mating plate swings, it is fixed to ensure a stable connection between the mating plate and the driving component, thereby ensuring the correct transmission of torque. In the above technology, when the tensile strength of the bolt to be tested needs to be tested, the driving component applies torque to the mating plate, that is, the mating plate moves upward under the torque, the upward movement of the mating plate drives the chassis to move upward, and the mating plate transmits the torque to the chassis, and the chassis transmits the torque to the bolt to be tested, thereby realizing the tensile strength test of the bolt to be tested. When the shear strength of the bolt to be tested needs to be tested, the operator first unscrews part of the bolt to be tested, so that the bolt to be tested... The mold is partially exposed at the end of the bolt being tested. The mating plate is then oscillated to align with the bolt's thread. The operator then uses a limiting device to fix the mating plate, preventing it from shaking or shifting under the torque applied by the driving component, thus preventing stress concentration and transmission. The operator then uses a linkage device to engage the driving component with the mating plate, allowing the driving component to stably apply torque to the mating plate. This torque, applied perpendicularly to the mating plate, is transmitted through the mating plate to the chassis, causing the inner circumference of the perforated hole to align with the bolt's thread. The rod applies force to achieve the shear force test of the bolt under test; the above-mentioned technology improves the testing efficiency and the accuracy of the test data, while also increasing the versatility of the testing functions; in the above-mentioned technology, it is possible to determine whether the bolt under test is loose, wobbly, or damaged by manual visual inspection or instruments, that is, during tensile or shear force testing, it is possible to determine in real time whether the bolt under test is loose, wobbly, or damaged, that is, the moment of damage is recorded in real time by an external intelligent control center; the external intelligent control center mentioned in the above-mentioned technology can be a computer or other intelligent recording and processing device.

[0006] The present invention further comprises: the driving component includes a driving cylinder mounted on a testing platform; a transmission rod is provided on the output end of the driving cylinder for applying the output torque of the driving cylinder to the mating plate; a torque sensor is provided between the transmission rod and the output end of the driving cylinder; and the torque sensor is the testing component.

[0007] The advantages of adopting the above technical solution are: when testing, the drive cylinder starts and transmits torque to the mating plate through the transmission rod, thereby realizing torque loading. The torque sensor records the output torque of the drive cylinder and transmits the torque data to the external intelligent control center in real time, thereby improving the testing efficiency and the accuracy of the testing data. The drive cylinder in the above technology is existing technology, so its structure and function will not be described in detail.

[0008] The present invention further comprises: a mating hole is provided on the mating plate, and an abutment rod is provided through the mating hole. One end of the abutment rod extends out of the mating hole and is connected to the transmission rod, and the other end is an abutment end for abutting with an external bolt to be tested. The abutment rod is a linkage component.

[0009] The advantages of adopting the above technical solution are as follows: When the driving cylinder outputs torque, the output end of the driving cylinder applies torque to the transmission rod, which transmits the torque to the abutment rod, causing the abutment rod to abut against the bolt to be tested, thereby realizing torque transmission. At the same time, after the mating plate swings, the torque can also be applied to the outer peripheral wall of the bolt to be tested through the abutment rod, thereby realizing the correct loading of torque. The setting of the abutment rod in the above technology allows the torque output by the driving cylinder to act on the nut end face of the bolt to be tested, that is, to apply a vertical torque to the nut end face of the bolt to be tested, thereby realizing the detection of the compressive strength of the bolt to be tested.

[0010] The present invention further comprises: a return spring sleeved on the abutment rod, one end of the return spring being connected to the bottom surface of the mating plate, and the other end being connected to the abutment rod.

[0011] The advantage of adopting the above technical solution is that the reset spring in the above technology is used to retract and reset the abutment rod when the torque is no longer applied to the abutment rod, thereby causing the abutment rod to disengage from the bolt to be tested, thus avoiding the abutment rod not restricting the swing of the mating plate when the mating plate swings.

[0012] The present invention further includes: a frame is provided on the testing platform, a drive motor is provided on the frame, and a swing arm is connected to the output end of the drive motor for driving the drive cylinder to swing in a fan shape when the drive motor is started. The radial cross section of the swing arm is arranged in an inverted "L" shape. One end of the swing arm is connected to the outer wall of the drive cylinder, and the other end is connected to the output end of the drive motor.

[0013] The advantages of adopting the above technical solution are: when the drive cylinder swings in a fan shape, the operator starts the drive motor, causing the output end of the drive motor to rotate and drive the swing arm to swing in a fan shape. At this time, the swing arm drives the drive cylinder to swing, so that the drive cylinder can swing synchronously after the mating plate swings, thereby ensuring that the transmission rod on the output end of the drive cylinder can still correctly push the latch rod to abut against the screw end of the bolt to be tested. The whole swinging process is automated, improving the adjustment efficiency and thus improving the testing efficiency.

[0014] The present invention further comprises: a plurality of upright plates are provided on the chassis, the inner wall surfaces of the plurality of upright plates are all limiting surfaces for partial contact with the outer wall of the nut of the bolt to be tested, and the radial cross section of the plurality of upright plates is polygonal.

[0015] The advantage of adopting the above technical solution is that the setting of several vertical plates in the above technology ensures that there will be no turnover when the bolt to be tested is fitted with the mold, that is, it will not be unscrewed out of the mold, thereby avoiding the bolt shaking or loosening or falling out of the mold during the testing process, which would affect the test results.

[0016] The present invention further comprises: a sliding groove is provided on the chassis corresponding to each position of the upright plate; the upright plate is slidably disposed in the corresponding sliding groove; a limiting hole is provided on the outer peripheral wall of the chassis corresponding to each position of the sliding groove; each limiting hole is connected to the corresponding sliding groove; a limiting rod is threaded into each limiting hole; the beginning end of each limiting rod passes through the sliding groove and is connected to the outer wall surface of its adjacent and corresponding upright plate; the upright plate and the limiting rod are rotatably connected, and the width of the upright plate is adapted to the width of the sliding groove.

[0017] The advantages of adopting the above technical solution are as follows: After the operator screws the bolt to be tested into the mold, the operator screws in the limiting rod, causing the limiting rod to push the upright plate to slide in the slide groove. That is, the limiting surface of the upright plate abuts against the outer peripheral wall of the nut of the bolt to be tested, thereby realizing the limiting and fixing of several upright plates to the nut end of the bolt to be tested. The limiting hole and the limiting rod are threadedly engaged, thus preventing the upright plate from sliding in the slide groove during the testing process, which would cause the limiting of the upright plate to fail. The limiting rod and the upright plate are rotatably connected in the above technology, so that the upright plate can be driven to slide correctly in the slide groove when the limiting rod is screwed in or out. The width of the slide groove is adapted to the width of the upright plate, so that the upright plate will not wobble or loosen in the slide groove when sliding. At the same time, the slide groove also plays a role in limiting and guiding the upright plate.

[0018] The present invention further includes: a vibration motor is provided at the bottom of the receiving groove, the output end of the vibration motor is a conductive end for contacting the bottom of the external mold, and a vibration sensor is embedded on the limiting surface of the upright plate.

[0019] The advantages of adopting the above technical solution are as follows: When a certain stage is detected, the vibration motor starts and drives the mold to vibrate. At this time, the vibration sensor on the upright plate receives the vibration frequency applied by the bolt to be tested. This vibration frequency is converted into an amplitude diagram and transmitted to the external intelligent control center. The external intelligent control center receives the amplitude diagram and compares it with the standard amplitude diagram. If a frequency line is broken or has abnormal curvature, it can be determined that the bolt to be tested is loose. The above technical settings improve the accuracy of the judgment of the bolt to be tested in the later stage of the detection. It can be carried out simultaneously with manual visual judgment and instrument judgment, thereby detecting the loosening or damage condition of the bolt to be tested under a certain torque.

[0020] The invention further comprises: two connecting plates opposite each other on the chassis, both connecting plates being connected to the bottom surface of a mating plate; a rotating shaft being provided on the outer peripheral wall of the chassis corresponding to the positions of the two connecting plates; an insertion hole for inserting the rotating shaft being provided on the connecting plate; a sleeve being provided in the insertion hole; an opening for partially accommodating the rotating shaft being provided on the sleeve; a first tooth pattern arranged circumferentially on the inner peripheral wall of the opening; a second tooth pattern for engaging with the first tooth pattern being provided on the outer peripheral wall of the rotating shaft; a third tooth pattern arranged circumferentially on the outer peripheral wall of the sleeve; and a fourth tooth pattern for engaging with the third tooth pattern being provided on the inner peripheral wall of the insertion hole. The sleeve serves as a limiting component. The detection stage is hollow and has two output cavities, both of which are connected to a receiving groove. A servo cylinder is provided in each output cavity, with the output end of the servo cylinder extending out of the output cavity and into the receiving groove. The servo cylinder serves as a fixing component.

[0021] The advantages of adopting the above technical solution are as follows: When the mating plate swings, the operator inserts the sleeve into the socket, so that the third tooth on the sleeve engages with the fourth tooth on the socket, making it difficult for the sleeve to rotate in the socket. Meanwhile, the first tooth on the sleeve engages with the second tooth on the insert shaft, making it difficult for the insert shaft to rotate in the sleeve, thus fixing the connecting plate and fixing the mating plate after swinging, ensuring that the mating plate will not shake during testing, thereby improving the accuracy of testing. When it is necessary to fix the mold, the operator can activate the servo cylinder, so that the output end of the servo cylinder is placed in the receiving groove and abuts against the outer wall of the mold, thereby achieving clamping and limiting of the mold by the output ends of the two servo cylinders. The setting of the servo cylinder ensures that the mold will not shake or shift, which would affect the test results. At the same time, the detachable mold setting allows molds suitable for different types of bolts to be tested to be installed in the receiving groove, thereby improving the adaptability of testing and the diversity of testing types. Attached Figure Description

[0022] Figure 1 This is a three-dimensional view of the present invention; Figure 2 This is a three-dimensional view of the swinging state of the present invention; Figure 3This is a three-dimensional view of the detection stage removed in this invention; Figure 4 for Figure 3 A partial perspective 3D view; Figure 5 This is an exploded three-dimensional view of the mating plate and its structure in this invention. Detailed Implementation

[0023] This invention provides a multifunctional bolt testing fixture, including a testing platform. The testing platform has a receiving groove 11 for accommodating an external mold that mates with the thread of the bolt to be tested. The testing platform is equipped with a fixing member for securing the external mold. A base plate 2 is provided on the testing platform, and the base plate 2 has a through hole 21 for the external bolt to be tested to pass through. A mating plate 22 parallel to the top surface of the external bolt to be tested is provided on the base plate 2. The testing platform is equipped with a driving member for applying torque to the mating plate 22 and a detection member for detecting the torque applied by the driving member. The mating plate 22 is oscillatingly mounted on the base plate 2, and the base plate 2 is equipped with a limiting member for fixing the mating plate 22 after oscillation. The testing platform is equipped with a useful... A linkage component for connecting the driving component and the mating plate 22 is provided. The driving component includes a driving cylinder 3 mounted on a testing platform. A transmission rod 31 is provided on the output end of the driving cylinder 3 for applying the output torque of the driving cylinder 3 to the mating plate 22. A torque sensor 32 is provided between the transmission rod 31 and the output end of the driving cylinder 3. The torque sensor 32 is the testing component. A mating hole 221 is provided on the mating plate 222. An abutment rod 23 passes through the mating hole 221. One end of the abutment rod 23 passes through the mating hole 221 and is connected to the transmission rod 31. The other end is an abutment end for abutting with an external bolt to be tested. The abutment rod 23 is the linkage component. A return spring 24 is sleeved on the abutment rod 23. One end of the positioning spring 24 is connected to the bottom surface of the mating plate 22, and the other end is connected to the abutment rod 23. A frame 12 is provided on the testing platform, and a drive motor 4 is mounted on the frame 12. A swing arm 41 is connected to the output end of the drive motor 4 to drive the drive cylinder 3 to swing in a fan shape when the drive motor starts. The swing arm 41 has a radial cross-section in the shape of an inverted "L". One end of the swing arm 41 is connected to the outer wall of the drive cylinder 3, and the other end is connected to the output end of the drive motor 4. Several upright plates 25 are provided on the chassis 2. The inner walls of the upright plates 25 are limiting surfaces for partial abutment against the outer wall of the nut of the bolt to be tested. The combined radial cross-section of the upright plates 25 is polygonal. The chassis 2 has a corresponding upright plate 25. Each position is provided with a sliding groove 26, and the upright plate 25 is slidably disposed in the corresponding sliding groove 26. A limiting hole 27 is provided on the outer peripheral wall of the chassis 2 corresponding to each sliding groove 26, and each limiting hole 27 is connected to the corresponding sliding groove 26. A limiting rod 28 is threaded into each limiting hole 27, and the starting end of each limiting rod 28 passes through the sliding groove 26 and connects to the outer wall surface of its adjacent and corresponding upright plate 25. The upright plate 25 and the limiting rod 28 are rotatably connected, and the width of the upright plate 25 is adapted to the width of the sliding groove 26. A vibration motor 5 is provided at the bottom of the receiving groove 11, and the output end of the vibration motor 5 is a conductive end for contacting the bottom of the external mold. A vibration sensor 51 is embedded on the limiting surface of the upright plate 25.Two connecting plates 6 are arranged opposite each other on the chassis 2. Both connecting plates 6 are connected to the bottom surface of the mating plate 22. A rotating shaft 61 is provided on the outer peripheral wall of the chassis 2 at the position corresponding to the two connecting plates 6. The connecting plates 6 have insertion holes 62 for inserting the rotating shaft 61. A sleeve 63 is provided in the insertion hole 62. The sleeve 63 has an opening 631 for partially accommodating the rotating shaft 61. The inner peripheral wall of the opening 631 has a first tooth pattern 632 arranged circumferentially. The outer peripheral wall of the rotating shaft 61 has a tooth pattern for engaging with the first tooth pattern 632. The second toothed groove 611 engages with the third toothed groove 633, which is circumferentially formed on the outer peripheral wall of the insert 63. A fourth toothed groove 621 engaging with the third toothed groove 633 is formed on the inner peripheral wall of the insertion hole 62. The insert 63 serves as a limiting member. The detection stage has two hollow output cavities 7, both of which are connected to the receiving groove 11. A servo cylinder 71 is installed in each output cavity 7, with its output end extending from the output cavity 7 into the receiving groove 11. The servo cylinder 71 serves as a fixing member.

[0024] The screw to be tested described in the above technology is identified as 8 in the accompanying drawings.

[0025] The foregoing has shown and described the basic principles and main features of the present invention, as well as its advantages. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A multi-functional bolt inspection fixture, characterized in that: The system includes a testing platform with a receiving groove for accommodating an external mold that mates with the threaded bolt to be tested. The testing platform also includes a fixing component for securing the external mold. A base is mounted on the testing platform, with a through hole for the external bolt to pass through. A mating plate, parallel to the top surface of the external bolt, is mounted on the base. The testing platform includes a driving component for applying torque to the mating plate and a detection component for measuring the applied torque. The mating plate is oscillating on the base, and a limiting component is mounted on the base to fix the mating plate after oscillation. The testing platform also includes a mechanism for adjusting the driving component. A linkage component is connected to the mating plate. Two connecting plates are arranged opposite each other on the chassis. Both connecting plates are connected to the bottom surface of the mating plate. A rotating shaft is provided on the outer peripheral wall of the chassis corresponding to the two connecting plates. The connecting plates have insertion holes for inserting the rotating shafts. A sleeve is provided in the insertion hole. The sleeve has an opening for partially accommodating the rotating shaft. The inner peripheral wall of the opening has a first tooth pattern arranged circumferentially. The outer peripheral wall of the rotating shaft has a second tooth pattern for engaging with the first tooth pattern. The outer peripheral wall of the sleeve has a third tooth pattern arranged circumferentially. The inner peripheral wall of the insertion hole has a fourth tooth pattern for engaging with the third tooth pattern. The sleeve is a limiting component.

2. The multifunctional bolt inspection fixture according to claim 1, characterized in that: The driving component includes a driving cylinder mounted on the testing platform. A transmission rod is provided on the output end of the driving cylinder for applying the output torque of the driving cylinder to the mating plate. A torque sensor is provided between the transmission rod and the output end of the driving cylinder, and the torque sensor is the testing component.

3. The multifunctional bolt inspection fixture according to claim 2, characterized in that: The mating plate has a mating hole, and an abutment rod passes through the mating hole. One end of the abutment rod passes through the mating hole and is connected to the transmission rod, and the other end is an abutment end for mating with the external bolt to be tested. The abutment rod is a linkage component.

4. The multifunctional bolt inspection fixture according to claim 3, characterized in that: A return spring is fitted on the abutment rod. One end of the return spring is connected to the bottom surface of the mating plate, and the other end is connected to the abutment rod.

5. A multifunctional bolt inspection fixture according to claim 2, characterized in that: The testing platform is equipped with a frame, on which a drive motor is mounted. A swing arm is connected to the output end of the drive motor to drive the drive cylinder to swing in a fan shape when the drive motor is started. The radial cross section of the swing arm is arranged in an inverted "L" shape. One end of the swing arm is connected to the outer wall of the drive cylinder, and the other end is connected to the output end of the drive motor.

6. The multifunctional bolt inspection fixture according to claim 1, characterized in that: The chassis is provided with several upright plates, and the inner wall surfaces of the upright plates are all limiting surfaces for partial contact with the outer wall of the nut of the bolt to be tested. The radial cross section of the combination of the upright plates is polygonal.

7. A multifunctional bolt inspection fixture according to claim 6, characterized in that: Each vertical plate on the chassis has a corresponding groove, and the vertical plate is slidably disposed in the corresponding groove. Each groove has a limiting hole on the outer peripheral wall of the chassis, and each limiting hole is connected to the corresponding groove. Each limiting hole has a threaded limiting rod, and the beginning of each limiting rod is inserted into the groove and connected to the outer wall of the adjacent vertical plate. The vertical plate and the limiting rod are rotatably connected, and the width of the vertical plate is adapted to the width of the groove.

8. A multifunctional bolt inspection fixture according to claim 6, characterized in that: A vibration motor is installed at the bottom of the receiving groove. The output end of the vibration motor is a conductive end for contacting the bottom of the external mold. A vibration sensor is embedded on the limiting surface of the upright plate.

9. A multifunctional bolt inspection fixture according to claim 1, characterized in that: The testing platform has two hollow output cavities, both of which are connected to the receiving groove. A servo cylinder is installed in each output cavity, with the output end of the servo cylinder extending out of the output cavity and into the receiving groove. The servo cylinder is a fixing component.

Images