Steel bar straight thread sleeve connection quality detection equipment and use method

Abstract

The invention provides steel bar straight thread sleeve connection quality detection equipment and a use method thereof, and solves the problems that the existing steel bar sleeve connection quality detection equipment needs to manually draw lines on steel bars and sleeves as marks, the error is large, the influence of pollutants on the surfaces of the steel bars and the sleeves is poor, and the detection efficiency is high. And the mark lines are easy to have relatively shallow or discontinuous traces so as to influence the observation. During detection, visible laser rays emitted by the laser device are used as marking lines, and the distance sensor is matched to determine the length of the threaded joint of the reinforcing steel bar, the length of the sleeve, whether the threaded joint is in butt joint in the sleeve to form a butt seam or not and whether the formed butt seam coincides with the left and right equally-divided surfaces of the sleeve or not. Meanwhile, when the equipment is used, a bayonet of the torque wrench is clamped on the sleeve, and the pushing device is controlled to push the torque wrench, so that the pushing force obtained by the torque wrench is more stable and controllable, and meanwhile, the purpose of detecting the torque strength after the sleeve is connected is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a steel bar straight thread sleeve connection quality detection device and a use method thereof. Background Art

[0002] With the rapid development of social economy, transportation infrastructure has entered a new round of construction climax. High-speed railways, highways and local road bridges are mainly built with reinforced concrete bridges. In order to ensure the quality of steel bar processing and installation, welding or mechanical connection methods are generally used. Steel bar sleeve connection is a method of mechanical connection of steel bars after sawing and threading. This process technology is widely used in steel bar connection in engineering construction.

[0003] When straight thread connection is used in mechanical connection of steel bars, it is necessary to detect whether the sleeve connection joint is tightly connected. The current detection direction is: use a ruler to detect whether the steel bar joint is tightly pressed in the sleeve, and whether the butt joint of the steel bar joint is in the center of the sleeve.

[0004] For example, the patent with application number 202221089775.7 discloses a marking ruler for detecting the connection quality of straight threaded steel bar sleeves, including a left ruler, a right ruler and a ruler handle; the left ruler and the right ruler are engraved with scales in opposite directions, and the starting scales are a certain distance apart; the contact surface of the left ruler and the right ruler is located in the middle of the top of the ruler handle, which can detect the connection quality of the straight threaded steel bar sleeves, and can intuitively see whether the steel bar joint is tight and whether the joint is in the center position. However, this manual marking ruler has the following disadvantages when used: (1) During inspection, it is necessary to manually draw lines on the steel bars and sleeves as marks. This manual marking is not only prone to large errors, but also because the surfaces of the steel bars and sleeves are easily contaminated by various pollutants in the construction environment, the ink of the marking pen is not easy to adhere to the steel bars and sleeves during marking, resulting in shallow or intermittent line marks that are difficult to observe; (2) The marking ruler can only measure whether the steel bar joint is tight in the sleeve, but cannot detect the torsional torque after the steel bar joint and the sleeve are connected, making it difficult to determine whether the torque after the steel bar joint and the sleeve are connected meets the use requirements. Summary of the invention

[0005] In order to solve the problem that the existing steel bar sleeve connection quality inspection equipment in the background technology needs to manually draw lines on the steel bar and the sleeve as marks, which not only has a large error, but is also affected by pollutants on the surface of the steel bar and the sleeve, and the marking lines are prone to have shallow marks or intermittent marks, thereby affecting observation, the present invention proposes a steel bar straight thread sleeve connection quality inspection equipment and a use method.

[0006] The technical scheme of the present invention is: a steel bar straight thread sleeve connection quality inspection equipment, comprising two steel bars butted together on the left and right, the ends of the two steel bars are provided with threaded connectors, the threaded connectors on the left and right sides are butted together and inserted into the sleeve at the same time, the sleeve is an internal thread sleeve, the sleeve is threadedly connected with the threaded connector, the threaded connectors on the left and right sides form a butt joint at the butt joint, the butt joint is located in the sleeve, and also includes a box body, the left side of the box body is an open structure, and the left side of the box body is detachably provided with a box door; A first track extending in the left-right direction is fixedly provided on the front side of the box body, and three translation mechanisms capable of moving left-right along the length direction thereof are provided on the first track. A first mounting plate is fixedly provided on the top of the two translation mechanisms on both sides, and a first laser is fixedly provided on the top of the first mounting plate. A second mounting plate is fixedly provided on the top of the translation mechanism in the middle, and a second laser is fixedly provided on the top of the second mounting plate. The second mounting plate is embedded with a first distance sensor and a second distance sensor, the first distance sensor is used to monitor the distance between the second mounting plate and the first mounting plate on the right side, and the second distance sensor is used to monitor the distance between the second mounting plate and the first mounting plate on the left side; Two support arms are placed in the box, and the two support arms are used to be detachably clamped on the left and right steel bars; A support seat is detachably provided on the top of the box body, a push device that can swing up and down is hingedly provided on the front side of the support seat, the push device can be extended and retracted in the front-back direction, and a second hoop that can swing back and forth is hingedly connected to one end of the push device away from the support seat, the second hoop is detachably sleeved on a long rod of a torque wrench extending in the up-down direction, and the bayonet of the torque wrench faces upwards so as to be easily clamped on the sleeve; The box body is provided with a control device and a display screen, the control device is connected to the display screen by signal, the control device is connected to the translation mechanism, the first laser, the second laser, and the pushing device by control, and the first distance sensor, the second distance sensor and the control device are connected to the signal.

[0007] Preferably, the first track includes a bottom plate extending in the left-right direction, a rack extending in the left-right direction is fixedly provided on the rear side of the bottom plate, and the teeth of the rack face downwards; The translation mechanism includes a translation frame slidably mounted on the rack, the translation frame is a U-shaped plate structure, an open groove for inserting the rack is opened on the left plate of the translation frame, a translation drive motor is fixedly mounted on the right side of the translation frame, the output shaft of the translation drive motor rotates left and passes through the right side plate of the translation frame, a gear is fixedly mounted on the output shaft of the translation drive motor, and the top of the gear is meshed with the rack.

[0008] Preferably, a first slide groove extending in the left-right direction is opened on the rear side of the bottom plate, the rack is located above the first slide groove, and the first slide groove is a T-slot or dovetail groove structure; A first sliding block adapted to the first sliding groove is fixedly provided on the left side of the translation frame, and the first sliding block is slidably arranged in the first sliding groove.

[0009] Preferably, the support arm includes a first connecting rod, the lower end of the first connecting rod is detachably connected to the top of the box body, and the top of the first connecting rod is fixedly provided with a first clamping hoop, and the first clamping hoop is detachably mounted on the steel bar.

[0010] Preferably, two second rails are fixedly provided at intervals on the left and right sides of the top of the box body, the second rails extend in the front-back direction, a second slider is slidably and detachably provided on the second rail, and the top of the second slider is fixedly connected to the lower end of the support arm; The second slider is provided with a first locking mechanism, and the first locking mechanism is used to lock and fix the second slider on the second track.

[0011] Preferably, the first locking mechanism includes a first internal threaded hole opened on the second slider and a positioning screw passed through the first internal threaded hole. The first internal threaded hole is a transparent structure from top to bottom. The positioning screw is threadedly connected to the first internal threaded hole, and the lower end of the positioning screw abuts against the top of the second slider. The positioning screw is used to fix the second slider on the second track.

[0012] Preferably, two third rails are fixedly provided on the top of the box body with a left and right interval, the second rail extends in the front-to-back direction, a third slider is slidably and detachably provided on the second rail, the top of the third slider is fixedly connected to a second connecting rod extending upward, and the top of the second connecting rod is fixedly connected to the support seat.

[0013] Preferably, a second locking mechanism is provided on the third slider, and the second locking mechanism is used to lock and fix the third slider on the third track. The second locking mechanism has the same structure as the first locking mechanism.

[0014] A method for using a steel bar straight threaded sleeve connection quality inspection device, comprising the following steps: S1, opening a box door on the left side of a box body, taking out a support arm, slidingly installing the lower end of the support arm on a second track on the top of the box body through a second slider, connecting the upper ends of two support arms to two steel bars through a first hoop, respectively, at which time the first hoop and the steel bar are in a loose fit, moving the two steel bars left and right, so that the two steel bars are butted to form a butt joint; S2, control the first laser and the second laser to emit visible laser lines through the control device, and then control the three translation mechanisms through the control device to drive the first laser and the second laser to translate left and right, so that the visible laser lines emitted by the first laser on the left and right sides are aligned with the end of the threaded joint away from the butt joint, and the visible laser line emitted by the second laser is aligned with the butt joint, and the distance d1 between the second mounting plate and the first mounting plate on the right side measured by the first distance sensor is recorded, and the distance d2 between the second mounting plate and the first mounting plate on the left side measured by the second distance sensor is recorded; S3, move two steel bars to the left and right sides respectively, and thread the sleeve and the threaded joints of the two steel bars together and tighten them; S4, moving the steel bar and the sleeve left and right, if the visible laser lines emitted by the first lasers on the left and right sides can be aligned with the end of the threaded joint away from the butt joint again, the ends of the two steel bars are butt-jointed in the sleeve; If the visible laser lines emitted by the first lasers on the left and right sides cannot be aligned with the end of the threaded joint away from the butt joint, the ends of the two steel bars are butted in the sleeve, and steps S3-S4 are repeated until the visible laser lines emitted by the first lasers on the left and right sides can be aligned with the end of the threaded joint away from the butt joint; S5, when the visible laser lines emitted by the first lasers on the left and right sides can be aligned with the end of the threaded joint away from the butt joint again, the translation mechanisms on the left and right sides are controlled by the control device to move toward the middle of the butt joint, so that the visible laser lines emitted by the first lasers on the left and right sides are aligned with the left and right end surfaces of the sleeve respectively; Record the distance d3 between the second mounting plate and the first mounting plate on the right measured by the first distance sensor at this time, and record the distance d4 between the second mounting plate and the first mounting plate on the left measured by the second distance sensor at this time; If the values ​​of d3 and d4 are equal, the ends of the two steel bars are butted together in the sleeve, and the butt joint formed by the butt joint of the two steel bars coincides with the left and right equally divided surfaces of the sleeve; If the values ​​of d3 and 4d are not equal, the ends of the two steel bars are butted in the sleeve, but there is a misalignment between the butt joint formed by the butt joint of the two steel bars and the left and right bisecting planes of the sleeve; if there is a misalignment, repeat steps S3-S5 until the values ​​of d3 and d4 are equal; S6, take out the second connecting rod and the support seat from the box, slide the lower end of the second connecting rod onto the third track through the third slider, lock and fix the third slider onto the third track through the locking mechanism, and fasten the first hoop to the steel bar so that the first hoop and the steel bar form a tight fit relationship; S7, after the preset torque value of the torque wrench is set, the preset torque value is equal to the set torque value of the connection between the sleeve and the threaded joint, the bayonet of the torque wrench is clamped on the sleeve, and the rod body of the torque wrench is connected to the front end of the jacking device through the second clamping hoop; S8, control the pushing device to slowly push the torque wrench through the control device. If the sleeve does not rotate, the torque wrench directly emits an alarm sound, and the torque strength of the connection between the sleeve and the threaded joint is qualified; If the sleeve rotates and the torque wrench does not sound an alarm, the torque strength of the sleeve and the threaded joint is unqualified; S9, after the inspection is completed, remove the support arm, support base, and torque wrench and put them back into the box.

[0015] Advantages of the present invention: During detection, the present invention uses a visible laser line emitted by a laser as a marking line, and cooperates with a distance sensor to measure the length of the threaded joint of the steel bar, the length of the sleeve, and whether the threaded joint is butted in the sleeve to form a butt joint, and whether the formed butt joint coincides with the left and right equally divided surfaces of the sleeve, thereby avoiding the need to manually draw lines on the steel bar and the sleeve as marks when detecting the connection quality, which not only has a large error, but is also affected by contaminants on the surface of the steel bar and the sleeve, and the marking line is prone to have shallow marks or be intermittent, thereby affecting the observation.

[0016] At the same time, this equipment uses a jacking device and a torque wrench detachably installed on the box body. When in use, the bayonet of the torque wrench is stuck on the sleeve. By controlling the jacking device to push the torque wrench, the thrust obtained by the torque wrench is more stable and controllable. The torque strength of the steel bar joint and the sleeve after being connected is tested by the torque wrench to determine whether the torque strength of the steel bar joint and the sleeve after being connected meets the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the planar structure of the main viewing angle when the quality inspection equipment in Example 1 is used to align the thread end and the butt joint; Figure 2 It is a schematic diagram of the planar structure at the main viewing angle when the quality inspection equipment in Example 1 is performing a threaded joint butt quality inspection and a torque strength inspection of a steel bar joint and a sleeve; Figure 3 for Figure 1A schematic structural diagram of the first track and the translation mechanism thereon; Figure 4 for Figure 3 A structural schematic diagram of the translation mechanism from the left side; Figure 5 for Figure 2 A schematic diagram of the structure of the torque wrench support frame from an upward angle; Figure 6 for Figure 2 A magnified view of the structure at A; In the figure, 1, steel bar, 101, threaded joint, 2, butt joint, 3, sleeve, 4, box body, 5, box door, 6, first track, 601, bottom plate strip, 602, rack, 603, first slide groove, 7, translation mechanism, 701, translation frame, 702, translation drive motor, 703, gear, 704, first slider, 705, open groove, 8, first mounting plate, 9, second mounting plate, 10, first laser, 11, second laser, 12, first distance sensor, 13, second distance sensor, 14, protective cover, 15, second track, 16, first connecting rod, 17, first hoop, 18, third track, 19, second connecting rod, 20, support seat, 21, push device, 22, second hoop, 23, torque wrench, 24, second slider, 25, positioning screw, 26, display, 27, control device, 28, handle. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Embodiment 1: A steel bar straight thread sleeve connection quality detection device, such as Figure 1 and Figure 2 As shown, it includes two steel bars 1 butted together on the left and right sides, and the ends of the two steel bars 1 are provided with threaded connectors 101. The threaded connectors 101 on the left and right sides are butted together and inserted into the sleeve 3. The sleeve 3 is an internal threaded sleeve. The sleeve 3 is threadedly connected with the threaded connector 101. The threaded connectors 101 on the left and right sides form a butt joint 2 at the butt joint. The butt joint 2 is located in the sleeve 3. It also includes a box body 4. The left side of the box body 4 is an open structure. The left side of the box body 4 is detachably provided with a box door 5. In order to facilitate transportation, as shown in FIG. Figure 1 and Figure 2 As shown, a handle 28 is hingedly provided on the top of the box body 4.

[0021] A first track 6 extending in the left-right direction is fixedly disposed on the front side of the box body 4. Figure 3 As shown, the first track 6 includes a bottom plate bar 601 extending in the left-right direction, a rack 602 extending in the left-right direction is fixedly arranged on the rear side of the bottom plate bar 601, and the teeth of the rack 602 face downward. A first slide groove 603 extending in the left-right direction is opened on the rear side of the bottom plate bar 601, and the rack 602 is located above the first slide groove 603, and the first slide groove 603 is a T-shaped groove.

[0022] The first track 6 is provided with three translation mechanisms 7 which can move left and right along its length direction. Specifically, Figure 4 As shown, the translation mechanism 7 includes a translation frame 701 slidably mounted on the rack 602, the translation frame 701 is a U-shaped plate structure, an open groove 705 for inserting the rack 602 is provided on the left plate of the translation frame 701, a translation drive motor 702 is fixedly mounted on the right side of the translation frame 701, the output shaft of the translation drive motor 702 rotates leftward and passes through the right side plate of the translation frame 701, a gear 703 is fixedly mounted on the output shaft of the translation drive motor 702, and the top of the gear 703 is engaged with the rack 602.

[0023] In order to prevent the translation frame 701 from falling when moving, a first sliding block 704 adapted to the first sliding groove 603 is fixedly provided on the left side of the translation frame 701 , and the first sliding block 704 is slidably disposed in the first sliding groove 603 .

[0024] A first mounting plate 8 is fixed on the top of the two translation mechanisms 7 on both sides, and a first laser 10 is fixed on the top of the first mounting plate 8. A second mounting plate 9 is fixed on the top of the translation mechanism 7 in the middle, and a second laser 11 is fixed on the top of the second mounting plate 9.

[0025] The second mounting plate 9 is embedded with a first distance sensor 12 and a second distance sensor 13. The first distance sensor 12 is used to monitor the distance between the second mounting plate 9 and the first mounting plate 8 on the right side, and the second distance sensor 13 is used to monitor the distance between the second mounting plate 9 and the first mounting plate 8 on the left side.

[0026] Two support arms are placed in the box 4, and the two support arms are used to be detachably clamped on the left and right steel bars 1. In order to enable the support arms to adjust their positions forward and backward during use, such as Figure 1 and Figure 2 As shown, two second rails 15 spaced apart from each other are fixedly provided on the top of the box body 4. The second rails 15 extend in the front-rear direction. A second slider 24 is slidably and detachably provided on the second rail 15. The top of the second slider 24 is fixedly connected to the lower end of the support arm.

[0027] The support arm includes a first connecting rod 16 , the lower end of which is detachably connected to the top of the box body 4 , and a first hoop 17 is fixedly provided on the top of the first connecting rod 16 , and the first hoop 17 is detachably mounted on the steel bar 1 .

[0028] In order to prevent the steel bar 1 from driving the support arm to move forward and backward during measurement, Figure 1 and Figure 6 As shown, the second slider 24 is provided with a first locking mechanism, and the first locking mechanism is used to lock and fix the second slider 24 on the second track 15. Specifically, as Figure 6 As shown, the first locking mechanism includes a first internal threaded hole opened on the second slider 24 and a positioning screw 25 inserted into the first internal threaded hole. The first internal threaded hole is a transparent structure from top to bottom. The positioning screw 25 is threadedly connected to the first internal threaded hole, and the lower end of the positioning screw 25 abuts against the top of the second slider 24. The positioning screw 25 is used to fix the second slider 24 to the second rail 15.

[0029] Two third rails 18 spaced apart on the left and right are fixedly provided on the top of the box body 4. The second rail 18 extends in the front-to-back direction. A third sliding block is slidably and detachably provided on the second rail 18. The top of the third sliding block is fixedly connected to a second connecting rod 19 extending upward. The top of the second connecting rod 19 is fixedly connected to the support seat 20.

[0030] The third slider is provided with a second locking mechanism, which is used to lock and fix the third slider on the third track 18 . The second locking mechanism has the same structure as the first locking mechanism.

[0031] like Figure 1 , Figure 2 and Figure 5 As shown, the front side of the support seat 20 is hinged with a pushing device 21 that can swing up and down, and the pushing device 21 can be extended and retracted in the front and rear directions. The end of the pushing device 21 away from the support seat 20 is hingedly connected with a second clamping hoop 22 that can swing back and forth. The second clamping hoop 22 is detachably mounted on a long rod of a torque wrench 23 extending in the up and down directions, and the bayonet of the torque wrench 23 faces upward to facilitate clamping on the sleeve 3.

[0032] The pushing device 21 in this embodiment adopts a hydraulic rod that is easy to control. In other embodiments, the pushing device 21 can also adopt a cylinder or an electric push rod.

[0033] A control device 27 and a display screen 26 are provided on the box body 1. The control device 27 is signal-connected to the display screen 26. The control device 27 is control-connected to the translation mechanism 7, the first laser 10, the second laser 11, and the pushing device 21. The first distance sensor 12 and the second distance sensor 13 are signal-connected to the control device 27.

[0034] The control device 27 in this embodiment can be a single chip microcomputer, a PLC controller, an industrial computer or other control device.

[0035] The clamp members in the present embodiment are all clamp structures whose tightness is controlled by bolts. This clamp structure is a prior art and its structure will not be described in detail in the present embodiment.

[0036] A method for using a steel bar straight threaded sleeve connection quality inspection device, comprising the following steps: S1, open the box door 5 on the left side of the box body 4, take out the support arm, slide the lower end of the support arm onto the second track 15 on the top of the box body 4 through the second slider 24, and connect the upper ends of the two support arms to the two steel bars 1 respectively through the first hoop 17. At this time, the first hoop 17 and the steel bar 1 are in a loose fit relationship, and the steel bar 1 and the first hoop 17 can move left and right relative to each other, and move the two steel bars 1 left and right to butt the two steel bars 1 to form a butt joint 2.

[0037] S2, control the first laser 10 and the second laser 11 to turn on and emit visible laser lines through the control device 27, and then control the three translation mechanisms 7 through the control device 27 to drive the first laser 10 and the second laser 11 to translate left and right, so that the visible laser lines emitted by the first laser 10 on the left and right sides are aligned with the end of the threaded joint 101 away from the butt joint 2, and the visible laser line emitted by the second laser 11 is aligned with the butt joint 2, and the distance d1 between the second mounting plate 9 and the first mounting plate 8 on the right measured by the first distance sensor 12 is recorded at this time, and the distance d2 between the second mounting plate 9 and the first mounting plate 8 on the left measured by the second distance sensor 13 is recorded at this time.

[0038] S3, move the two steel bars 1 to the left and right sides respectively, and thread the sleeve 3 and the threaded joints 101 of the two steel bars 1 together and tighten them.

[0039] S4, move the steel bar 1 and the sleeve 3 left and right, if the visible laser lines emitted by the first lasers 10 on the left and right sides can be aligned with the end of the threaded joint 101 away from the butt joint 2, the ends of the two steel bars 1 are butt-jointed in the sleeve 3; If the visible laser lines emitted by the first lasers 10 on the left and right sides cannot be aligned with the end of the threaded joint 101 away from the butt joint 2, the ends of the two steel bars 1 are not butted together in the sleeve 3, and steps S3-S4 are repeated until the visible laser lines emitted by the first lasers 10 on the left and right sides can be aligned with the end of the threaded joint 101 away from the butt joint 2.

[0040] S5, when the visible laser lines emitted by the first lasers 10 on the left and right sides can be aligned with the end of the threaded joint 101 away from the butt joint 2 again, the translation mechanisms 7 on the left and right sides are controlled by the control device 27 to move toward the middle of the butt joint 2, so that the visible laser lines emitted by the first lasers 10 on the left and right sides are aligned with the left and right end surfaces of the sleeve 3 respectively; Record the distance d3 between the second mounting plate 9 and the first mounting plate 8 on the right measured by the first distance sensor 12, and record the distance d4 between the second mounting plate 9 and the first mounting plate 8 on the left measured by the second distance sensor 13; If the values ​​of d3 and d4 are equal, the ends of the two steel bars 1 are butted together in the sleeve 3, and the butt joint formed by the butt joint of the two steel bars 1 coincides with the left and right equally divided surfaces of the sleeve 3; If the values ​​of d3 and d4 are not equal, the ends of the two steel bars 1 are butted together in the sleeve 3, but there is a misalignment between the butt joint formed by the butt joint of the two steel bars 1 and the left and right bisecting surfaces of the sleeve 3; if there is a misalignment, repeat steps S3-S5 until the values ​​of d3 and d4 are equal.

[0041] S6, take out the second connecting rod 19 and the support seat 20 from the box body 4, slide the lower end of the second connecting rod 19 on the third track 18 through the third slider, and lock the third slider on the third track 18 through the locking mechanism, fasten the first hoop 17 to the steel bar 1, so that the first hoop 17 and the steel bar 1 form a tight fit relationship, so that the steel bar 1 and the first hoop 17 cannot move relative to each other.

[0042] S7, after the preset torque value of the torque wrench 23 is set, the preset torque value is equal to the set torque value of the connection between the sleeve 3 and the threaded joint 101, the bayonet of the torque wrench 23 is clamped on the sleeve 3, and the rod body of the torque wrench 23 is connected to the front end of the jacking device 21 through the second clamping hoop 22.

[0043] S8, control the pushing device 21 to slowly push the torque wrench 23 through the control device 27. If the sleeve 3 does not rotate, the torque wrench 23 directly emits an alarm sound, and the torque strength of the connection between the sleeve 3 and the threaded joint 101 is qualified; If the sleeve 3 rotates and the torque wrench 23 does not sound an alarm, the torque strength after the sleeve 3 is connected to the threaded joint 101 is unqualified.

[0044] S9, after the detection is completed, the support arm, the support base 20, and the torque wrench 23 are removed and put back into the box body 4.

[0045] Embodiment 2: A steel bar straight threaded sleeve connection quality inspection device, the difference between this embodiment and embodiment 1 is that the first slide groove 603 in this embodiment is a dovetail groove structure, and the first slider 704 is a dovetail block structure adapted to the first slide groove 603. The other structures are the same as those in embodiment 1.

[0046] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is limited by the appended claims rather than the above description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A steel bar straight threaded sleeve connection quality inspection device, comprising two steel bars (1) butted together, the ends of the two steel bars (1) are both provided with threaded connectors (101), the threaded connectors (101) on the left and right sides are butted together and inserted into a sleeve (3), the sleeve (3) is an internal threaded sleeve, the sleeve (3) is threadedly connected to the threaded connector (101), the threaded connectors (101) on the left and right sides form a butt joint (2) at the butt joint, and the butt joint (2) is located in the sleeve (3), characterized in that: It also comprises a box body (4), the left side of the box body (4) is an open structure, and the left side of the box body (4) is detachably provided with a box door (5); A first track (6) extending in the left-right direction is fixedly provided on the front side of the box body (4); three translation mechanisms (7) capable of moving left-right along the length direction thereof are provided on the first track (6); a first mounting plate (8) is fixedly provided on the top of two translation mechanisms (7) located on both sides; a first laser (10) is fixedly provided on the top of the first mounting plate (8); a second mounting plate (9) is fixedly provided on the top of the translation mechanism (7) located in the middle; a second laser (11) is fixedly provided on the top of the second mounting plate (9); A first distance sensor (12) and a second distance sensor (13) are embedded on the second mounting plate (9), the first distance sensor (12) being used to monitor the distance between the second mounting plate (9) and the first mounting plate (8) on the right, and the second distance sensor (13) being used to monitor the distance between the second mounting plate (9) and the first mounting plate (8) on the left; Two support arms are placed in the box (4), and the two support arms are used to be detachably clamped on the left and right steel bars (1); A support seat (20) is detachably provided on the top of the box body (4); a push device (21) capable of swinging up and down is hingedly connected to the front side of the support seat (20); the push device (21) is capable of extending and retracting in the front-rear direction; an end of the push device (21) away from the support seat (20) is hingedly connected to a second hoop member (22) capable of swinging back and forth; the second hoop member (22) is detachably sleeved on a long rod of a torque wrench (23) extending in the up-down direction; the bayonet of the torque wrench (23) faces upwards so as to be easily clamped on the sleeve (3); A control device (27) and a display screen (26) are provided on the box body (1); the control device (27) is signal-connected to the display screen (26); the control device (27) is control-connected to the translation mechanism (7), the first laser (10), the second laser (11), and the push device (21); and the first distance sensor (12) and the second distance sensor (13) are signal-connected to the control device (27).

2. A steel bar straight thread sleeve connection quality detection device as claimed in claim 1, characterized in that: The first track (6) comprises a bottom plate strip (601) extending in the left-right direction, a rack (602) extending in the left-right direction is fixedly provided on the rear side of the bottom plate strip (601), and the teeth of the rack (602) are facing downwards; The translation mechanism (7) comprises a translation frame (701) slidably mounted on the rack (602); the translation frame (701) is a square plate structure; an opening groove (705) for inserting the rack (602) is provided on the left side plate of the translation frame (701); a translation drive motor (702) is fixedly mounted on the right side of the translation frame (701); an output shaft of the translation drive motor (702) rotates leftward and passes through the right side plate of the translation frame (701); a gear (703) is fixedly mounted on the output shaft of the translation drive motor (702); and the top of the gear (703) is meshed with the rack (602).

3. A steel bar straight thread sleeve connection quality detection device as claimed in claim 2, characterized in that: A first slide groove (603) extending in the left-right direction is provided on the rear side of the bottom plate strip (601); the rack (602) is located above the first slide groove (603); and the first slide groove (603) is a T-shaped groove or a dovetail groove structure; A first sliding block (704) adapted to the first sliding groove (603) is fixedly provided on the left side of the translation frame (701), and the first sliding block (704) is slidably arranged in the first sliding groove (603).

4. A steel bar straight thread sleeve connection quality detection device as claimed in claim 1, characterized in that: The support arm comprises a first connecting rod (16), the lower end of the first connecting rod (16) being detachably connected to the top of the box body (4), the top of the first connecting rod (16) being fixedly provided with a first hoop member (17), and the first hoop member (17) being detachably sleeved on the steel bar (1).

5. A steel bar straight thread sleeve connection quality detection device as claimed in claim 1 or 4, characterized in that: Two second rails (15) are fixedly provided on the top of the box body (4) and are spaced apart from each other. The second rails (15) extend in the front-rear direction. A second sliding block (24) is slidably and detachably provided on the second rail (15). The top of the second sliding block (24) is fixedly connected to the lower end of the support arm. The second slider (24) is provided with a first locking mechanism, and the first locking mechanism is used to lock and fix the second slider (24) on the second track (15).

6. A steel bar straight thread sleeve connection quality detection device as claimed in claim 5, characterized in that: The first locking mechanism comprises a first internal threaded hole formed on the second slider (24) and a positioning screw (25) inserted into the first internal threaded hole. The first internal threaded hole is a structure that is transparent from top to bottom. The positioning screw (25) is threadedly connected to the first internal threaded hole, and the lower end of the positioning screw (25) abuts against the top of the second slider (24). The positioning screw (25) is used to fix the second slider (24) to the second track (15).

7. A steel bar straight thread sleeve connection quality detection device as claimed in claim 5, characterized in that: Two third rails (18) are fixedly provided on the top of the box body (4) and are spaced apart from each other. The second rail (18) extends in the front-rear direction. A third sliding block is slidably and detachably provided on the second rail (18). A second connecting rod (19) extending upward is fixedly connected to the top of the third sliding block. The top of the second connecting rod (19) is fixedly connected to the support seat (20).

8. A steel bar straight thread sleeve connection quality detection device as claimed in claim 7, characterized in that: The third slider is provided with a second locking mechanism, which is used to lock and fix the third slider on the third track (18), and the second locking mechanism has the same structure as the first locking mechanism.

9. The method for using the steel bar straight thread sleeve connection quality detection device according to claims 1-8, characterized in that: The method comprises the following steps: S1, opening a box door (5) on the left side of the box body (4), taking out a support arm, slidingly installing the lower end of the support arm on a second track (15) on the top of the box body (4) via a second slider (24), connecting the upper ends of the two support arms to two steel bars (1) via a first hoop member (17), respectively, wherein the first hoop member (17) and the steel bars (1) are in a loose fit, and moving the two steel bars (1) left and right so that the two steel bars (1) are butted together to form a butt joint (2); S2, controlling the first laser (10) and the second laser (11) to emit visible laser lines through the control device (27), and then controlling the three translation mechanisms (7) through the control device (27) to drive the first laser (10) and the second laser (11) to translate left and right, so that the visible laser lines emitted by the first laser (10) on the left and right sides are aligned with the end of the threaded joint (101) away from the joint (2), and the visible laser line emitted by the second laser (11) is aligned with the joint (2), and the distance d1 between the second mounting plate (9) and the first mounting plate (8) on the right side measured by the first distance sensor (12) is recorded, and the distance d2 between the second mounting plate (9) and the first mounting plate (8) on the left side measured by the second distance sensor (13) is recorded; S3, moving the two steel bars (1) to the left and right sides respectively, threading the sleeve (3) and the threaded joints (101) of the two steel bars (1) together and tightening them; S4, moving the steel bar (1) and the sleeve (3) left and right, if the visible laser lines emitted by the first lasers (10) on the left and right sides can be aligned with the end of the threaded joint (101) away from the butt joint (2), the ends of the two steel bars (1) are butt-jointed in the sleeve (3); If the visible laser lines emitted by the first lasers (10) on the left and right sides cannot be aligned with the end of the threaded joint (101) away from the butt joint (2), the ends of the two steel bars (1) are not butt-jointed in the sleeve (3), and steps S3-S4 are repeated until the visible laser lines emitted by the first lasers (10) on the left and right sides can be aligned with the end of the threaded joint (101) away from the butt joint (2); S5, when the visible laser lines emitted by the first lasers (10) on the left and right sides can be aligned with the end of the threaded joint (101) away from the butt joint (2) again, the translation mechanisms (7) on the left and right sides are controlled by the control device (27) to move toward the middle of the butt joint (2), so that the visible laser lines emitted by the first lasers (10) on the left and right sides are aligned with the left and right end surfaces of the sleeve (3) respectively; Record the distance d3 between the second mounting plate (9) and the first mounting plate (8) on the right side measured by the first distance sensor (12) at this time, and record the distance d4 between the second mounting plate (9) and the first mounting plate (8) on the left side measured by the second distance sensor (13) at this time; If the values ​​of d3 and d4 are equal, the ends of the two steel bars (1) are butt-jointed in the sleeve (3), and the butt joint formed by the butt joint of the ends of the two steel bars (1) coincides with the left and right equally divided surfaces of the sleeve (3); If the values ​​of d3 and d4 are not equal, the ends of the two steel bars (1) are butt-jointed in the sleeve (3), but there is a misalignment between the butt joint formed by the butt joint of the two steel bars (1) and the left and right bisecting planes of the sleeve (3); if there is a misalignment, repeat steps S3-S5 until the values ​​of d3 and d4 are equal; S6, taking the second connecting rod (19) and the supporting seat (20) out of the box body (4), slidingly mounting the lower end of the second connecting rod (19) on the third track (18) via the third slider, and locking and fixing the third slider on the third track (18) via the locking mechanism, and fastening the first hoop member (17) to the steel bar (1), so that the first hoop member (17) and the steel bar (1) form a tight fit relationship; S7, after the preset torque value of the torque wrench (23) is set, the preset torque value is equal to the set torque value of the connection between the sleeve (3) and the threaded joint (101), the bayonet of the torque wrench (23) is clamped on the sleeve (3), and the rod body of the torque wrench (23) is connected to the front end of the jacking device (21) through the second clamping hoop (22); S8, controlling the pushing device (21) to slowly push the torque wrench (23) through the control device (27); if the sleeve (3) does not rotate, the torque wrench (23) directly emits an alarm sound, and the torque strength of the connection between the sleeve (3) and the threaded joint (101) is qualified; If the sleeve (3) rotates and the torque wrench (23) does not sound an alarm, the torque strength of the sleeve (3) and the threaded joint (101) after being connected is unqualified; S9, after the test is completed, the support arm, the support base (20), and the torque wrench (23) are removed and put back into the box (4).

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