Bearing steel pipe curvature detection device and detection method

Abstract

The invention relates to the field of bearing steel pipe detection, in particular to a bearing steel pipe curvature detection device and method, and the device comprises a supporting seat, the upper part of the right side of the supporting seat is movably provided with a fixed support, the upper part of the fixed support is fixedly connected with an outer diameter clamp, and the middle part of the outer diameter clamp is movably connected with an inner diameter tensioner. The bearing steel pipe curvature detection device is composed of a positioning detection mechanism and a detection adjustment mechanism, and the outer diameter clamper and the inner diameter tensioner on the fixed support are matched to clamp and position the positions of the outer ring and the inner ring of the bearing steel pipe. When the pressing ring on the surface of the supporting pipe moves, the left end of the bearing steel pipe is clamped and positioned by the positioning detection laser, then under the action of the detection adjusting mechanism, the bending degrees of the inner diameter and the outer diameter of the bearing steel pipe are detected in the single installation process in a staggered operation mode of the two laser detection heads, and the detection efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of bearing steel tube detection, and in particular to a bearing steel tube curvature detection device and a detection method. Background Art

[0002] Steel pipes are needed in the bearing production process. Before processing, the steel pipes need to be tested for their quality to check whether they are bent or deformed, or whether there are any local depressions.

[0003] The existing patent (Announcement No.: CN217716322U) discloses a bearing steel tube bending detection device. It includes a fixed frame and a steel tube to be detected, and a first fixed block located at the left position and a second fixed block located at the right position are fixedly installed on the fixed frame. In the process of implementing the solution, the inventor found that the following problems in the prior art have not been well solved: 1. Since both the inner diameter and the outer diameter of the bearing steel tube need to be detected, during the use of the bearing steel tube detection device, when detecting the inner diameter and the outer diameter of the bearing steel tube, it is necessary to clamp the bearing steel tube twice to complete the detection, which affects the detection efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a bearing steel tube curvature detection device and detection method to solve the problems raised in the above background technology: 1. Some existing bearing steel tubes need to be clamped twice to complete the detection of inner and outer diameters during the curvature inspection process, and the detection efficiency is low. In order to achieve the above purpose, the present invention provides the following technical solutions: A bearing steel tube curvature detection device, comprising: a support seat, a fixed bracket is movably installed on the upper right side of the support seat, an outer diameter clamp is fixedly connected to the upper part of the fixed bracket, an inner diameter tensioner is movably installed in the middle of the outer diameter clamp, and a support tube is rotatably connected to the upper left side of the support seat;

[0005] It also includes: a support tube, the left side of the support tube is movably connected to the right end of the support tube, the right side of the support tube is slidably connected with a jacket, the inside of the jacket and the surface of the support tube are movably connected with a positioning detection mechanism, and the left end of the bearing steel tube is positioned and detected by the positioning detection mechanism;

[0006] A detection adjustment mechanism matched with the positioning detection mechanism is movably connected between the interior of the support tube and the surface of the support seat, and the detection mode of the positioning detection mechanism is switched during the rightward movement and resetting process of the detection adjustment mechanism.

[0007] Preferably, the positioning detection mechanism comprises a movable groove, the movable groove is opened on the right side of the support tube, the jacket is slidably connected inside the movable groove, and a compression spring is fixedly connected between the left side of the jacket and the inner wall of the movable groove;

[0008] Three sink grooves are provided on the right side of the jacket, a U-shaped pressing plate is slidably connected inside the sink groove, oblique grooves are provided on both sides of the U-shaped pressing plate, a cross bar is slidably connected between the two sides of the inner wall of the sink groove, the cross bar is movably inserted between the two oblique grooves, a clamping plate is fixedly connected to the middle of the cross bar, and an extrusion spring is fixedly connected between the side wall of the U-shaped pressing plate and the inner wall of the sink groove;

[0009] A detection groove is provided on the right side of the jacket, and the detection groove and the three sink grooves are equidistantly distributed on the right side of the jacket along the circumference. Mounting holes are symmetrically provided on the inner wall of the detection groove. A support shaft is rotatably connected inside the mounting hole. Two opposite ends of the two support shafts are fixedly connected with laser detection heads. The two laser detection heads are symmetrically arranged, and a transmission gear is movably connected to the surface of the support shaft.

[0010] An adjusting ring is fixedly connected to the left side of the jacket, and a spiral guide rail cooperating with the detection and adjustment mechanism is fixedly connected to the middle part of the inner ring of the adjusting ring. A push ring cooperating with the detection and adjustment mechanism is slidably connected inside the adjusting ring. The push ring is movably sleeved on the surface of the support tube, and a limiting spring is fixedly connected between the right side of the push ring and the left side of the jacket. A push rod is symmetrically fixedly connected to the upper part of the right side of the jacket, and the right end of the push rod is movably inserted into the interior of the support tube. A mounting plate cooperating with the detection groove is fixedly connected between the right ends of the two push rods, and an adjusting rack is symmetrically fixedly connected to the right side of the mounting plate. The two adjusting racks are staggered up and down, and the two adjusting racks correspond to the two transmission gears one by one.

[0011] Preferably, a positioning rod is fixedly connected between the two sides of the inner wall of the sink, a positioning hole is opened in the middle of the clamping plate, and the clamping plate is slidably connected to the surface of the positioning rod through the positioning hole;

[0012] The opposite sides of the three clamping plates are all fixedly connected with balls.

[0013] Preferably, a torsion spring is fixedly connected between one end of the support shaft away from the laser detection head and the inner wall of the mounting hole;

[0014] The surfaces of the two support shafts are both fixedly sleeved with limit clutch rings, and the inner ring of the transmission gear is fixedly connected to the outer ring of the corresponding limit clutch ring.

[0015] Preferably, the detection and adjustment mechanism comprises an electric telescopic rod, and the electric telescopic rod is provided with two, and the two electric telescopic rods are symmetrically fixedly connected to the upper part of the left side of the support seat, and a pressure ring matched with a push ring is fixedly connected between the movable ends of the two electric telescopic rods, and the pressure ring is movably sleeved on the surface of the support tube, and the outer wall of the pressure ring is symmetrically fixedly connected with a ball head guide rod matched with a spiral guide rail;

[0016] The support tube is internally slidably connected with a connecting rod, the right end of the connecting rod is fixedly connected to the left side of the support tube, the left side of the connecting rod is symmetrically provided with a moving groove, the inside of the moving groove is slidably connected with a U-shaped block, a return spring is fixedly connected between the surface of the U-shaped block and the inner wall of the moving groove, the surface of the support tube is symmetrically provided with rectangular grooves, two of the rectangular grooves correspond to the two U-shaped blocks one by one, and one end of the U-shaped block passes through the rectangular groove and overlaps the side wall of the pressure ring;

[0017] The right side of the inner wall of the rectangular groove is fixedly connected to a limit sleeve, the interior of the limit sleeve is symmetrically and slidably connected with a T-shaped limit rod, the inner wall of the U-shaped block is symmetrically provided with limit holes that match the T-shaped limit rod, a reset spring is fixedly connected between the two T-shaped limit rods, the top and bottom of the limit sleeve are both provided with strip grooves that match the T-shaped limit rod, the middle of the rectangular groove is provided with an L-shaped through groove, the interior of the L-shaped through groove is slidably connected with an L-shaped recovery rod that matches the pressure ring, the right end of the L-shaped recovery rod is fixedly connected with a U-shaped reset plate that matches the T-shaped limit rod, and the U-shaped reset plate is movably sleeved on the surface corresponding to the limit sleeve;

[0018] A reset rod is symmetrically fixedly connected to the right side of the inner wall of the rectangular groove, and wedge-shaped reset blocks are fixedly connected to both sides of the U-shaped clamping block, and the two wedge-shaped reset blocks correspond to the two reset rods one by one.

[0019] Preferably, a chamfer matching with the T-shaped limiting rod is provided on one side of the U-shaped clamping block close to the limiting sleeve;

[0020] The limiting sleeve is arranged at the middle position of the U-shaped clamping block.

[0021] Preferably, both ends of the U-shaped reset plate are arranged in a V shape, and the width of the U-shaped reset plate is set to 0.8 times the distance between the two sides of the inner wall of the U-shaped block.

[0022] A method for using a bearing steel tube bending detection device comprises the following steps:

[0023] S1. When in use, first use the inner diameter tensioner to position and support the inner diameter position of the right end of the bearing steel tube, then start the electric telescopic rod on the left side of the support seat, so that the electric telescopic rod with the pressure ring presses against the side wall position of the two U-shaped blocks, so that the U-shaped blocks move to the left end position of the bearing steel tube with the connecting rod, the support tube and the jacket;

[0024] S2. When the U-shaped pressure plate on the right side of the jacket contacts the end face of the bearing steel tube, the U-shaped pressure plate moves toward the inside of the sink groove after being pressed. At this time, the inclined groove on the U-shaped pressure plate slides with the cross bar at the inner wall of the sink groove, so that the clamp moves inside the sink groove. At this time, the three clamps move relatively to clamp and position the left side of the bearing steel tube. Then, the pressure ring continues to move the jacket to the right. Under the restriction of the bearing steel tube, the jacket will move toward the inside of the support tube to avoid interference.

[0025] S3, when the pressure ring moves the U-shaped card block to the right side of the inner wall of the rectangular groove, the wedge-shaped reset block on the side wall of the U-shaped card block contacts the reset rod on the inner wall of the rectangular groove, and the wedge-shaped reset block moves the U-shaped card block to the inside of the movable groove, so that the U-shaped card block is released from contact with the pressure ring. At the same time, the U-shaped card block moves to the limit sleeve position on the right side of the rectangular groove, so that the T-shaped limit rod on the limit sleeve is inserted into the limit hole on the inner wall of the U-shaped card block, and the connecting rod and the support tube are restricted together, so that the three clamping plates on the right side of the clamping sleeve cannot continue to move horizontally after clamping the bearing steel pipe and maintain a stable state;

[0026] S4, then the pressure ring continues to move rightward on the surface of the support tube, and when the pressure ring presses against the side wall of the push ring, the push ring moves the push rod and the adjusting rack inside the detection groove, so that the adjusting rack is meshed with the transmission gear on the support shaft for transmission, and under the action of the limit clutch ring, the laser detection head at the rear side of the detection groove flips over and overlaps the outer ring position of the bearing steel tube, and the pressure ring that continues to move moves the ball head guide rod to the spiral guide rail position, so that the ball head guide rod moves along the trajectory of the spiral guide rail surface, and the adjusting ring rotates the support tube, the jacket, the connecting rod and the support tube on the surface of the support seat, so that the rotating laser detection head performs bending detection on the outer diameter of the bearing steel tube;

[0027] S5. When the pressure ring moves to the limit position inside the adjustment ring, the right end of the bearing steel tube is clamped by the outer diameter clamp on the fixed bracket, and the inner diameter tensioner contracts and releases the positioning state, then the electric telescopic rod is started to contract and moves with the pressure ring for reset. At this time, the push ring is elastically restored by the limit spring and moves with the adjustment rack for reset. Under the action of another limit clutch ring, the laser detection head at the front position inside the detection groove is flipped and overlapped with the inner ring position of the bearing steel tube. At the same time, the reset pressure ring slides with the ball head guide rod and the spiral guide rail surface, so that the adjustment ring rotates in the opposite direction with the support tube, the jacket, the connecting rod and the support seat, so that the detection probe at the inner diameter position of the bearing steel tube can perform bending detection.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] In the present invention, through the coordinated use of components such as a support tube, a positioning detection mechanism and a detection and adjustment mechanism, the outer diameter clamp and the inner diameter tensioner on the fixed bracket are coordinated to clamp and position the outer ring and the inner ring of the bearing steel tube respectively. When the pressure ring on the surface of the support tube moves, the left end of the bearing steel tube is clamped and positioned by the positioning detection laser. Then, under the action of the detection and adjustment mechanism, the curvature of the inner diameter and the outer diameter of the bearing steel tube is detected during a single installation process by staggered operation of two laser detection heads, thereby improving the detection efficiency.

[0030] In the present invention, by using the spiral guide rail, ball guide rod and push ring and other components in coordination, the curvature detection of the outer diameter of the bearing steel tube is completed with the cooperation of the spiral guide rail and the ball guide rod during the process of the pressure ring moving to the right. After the pressure ring is reset, during the reset operation of the push ring, the curvature detection of the inner diameter of the bearing steel tube is completed. The bearing steel tube can be detected twice in different directions by reciprocating the pressure ring, thereby further improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a front view of the position of the support seat and the support tube of the present invention;

[0032] Figure 2 It is a front cross-sectional view of the local position of the support tube and the jacket of the present invention;

[0033] Figure 3 For the present invention Figure 2 A magnified view of the structure at center A;

[0034] Figure 4 It is a side sectional view of the local position of the jacket and the sink of the present invention;

[0035] Figure 5 For the present invention Figure 4 A magnified view of the structure at B in the middle;

[0036] Figure 6 It is a cross-sectional view of a local position of the support tube and the adjustment ring of the present invention;

[0037] Figure 7 For the present invention Figure 6 A magnified view of the structure at C in the middle;

[0038] Figure 8 It is a side cross-sectional view of a local position of a support tube and a connecting rod of the present invention;

[0039] Fig. 9 For the present invention Figure 8 A magnified view of the structure at D in the middle;

[0040] Fig.10 It is a cross-sectional view of a local position of a connecting rod and a moving groove of the present invention;

[0041] Fig.11 It is a side cross-sectional view of a local position of the support tube and the rectangular groove of the present invention;

[0042] Fig.12 It is a side sectional view of the local position of the limiting sleeve and the U-shaped reset plate of the present invention;

[0043] Fig.13 It is a side view of the local position of the support shaft and the laser detection head of the present invention;

[0044] Fig.14 It is a side view of the local position of the jacket and the clamping plate of the present invention.

[0045] In the figure: 1, support seat; 2, fixed bracket; 3, outer diameter clamp; 4, inner diameter tensioner; 5, support tube; 6, support tube; 7, jacket; 8, positioning detection mechanism; 801, movable groove; 802, compression spring; 803, sinking groove; 804, U-shaped pressure plate; 805, inclined groove; 806, cross bar; 807, clamping plate; 808, extrusion spring; 809, detection groove; 810, mounting hole; 811, support shaft; 812, laser detection head; 813, transmission gear; 814, adjustment ring; 815, spiral guide rail; 816, push ring; 817, limit Spring; 818, push rod; 819, mounting plate; 820, adjustment rack; 9, detection and adjustment mechanism; 901, electric telescopic rod; 902, pressure ring; 903, ball head guide rod; 904, connecting rod; 905, moving groove; 906, U-shaped block; 907, return spring; 908, rectangular groove; 909, limit sleeve; 910, T-shaped limit rod; 911, limit hole; 912, reset spring; 913, strip groove; 914, L-shaped through groove; 915, L-shaped recovery rod; 916, U-shaped reset plate; 917, reset rod; 918, wedge-shaped reset block. DETAILED DESCRIPTION

[0046] 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 technical personnel in this field without creative work are within the scope of protection of the present invention.

[0047] See also Figures 1 to 14The present invention provides a technical solution: a bearing steel pipe bending detection device, comprising: a support seat 1, a fixed bracket 2 is movably installed on the upper right side of the support seat 1, an outer diameter clamp 3 is fixedly connected to the upper part of the fixed bracket 2, an inner diameter tensioner 4 is movably installed in the middle part of the outer diameter clamp 3, and a support tube 5 is rotatably connected to the upper left side of the support seat 1. It should be noted that: the outer diameter clamp 3 can clamp and position the outer ring position of the bearing steel tube, and the inner diameter tensioner 4 can clamp and position the inner diameter position of the bearing steel tube, and in the process of the outer diameter clamp 3 clamping the bearing steel tube, it is convenient to detect the curvature of the inner diameter of the steel tube bearing, and in the process of the inner diameter tensioner 4 clamping the bearing steel tube, it is convenient to detect the curvature of the outer diameter of the steel tube bearing, and a light receiving plate is provided on the side wall of the outer diameter clamp 3 to facilitate the reception and processing of laser information. Here, the outer diameter clamp 3, the inner diameter tensioner 4 and the light receiving plate all adopt the existing technology and are not described in detail here; an electric push rod is fixedly connected to the lower part of the support seat 1, and the movable end of the electric push rod is fixedly connected to the side wall of the fixed bracket 2, so that the fixed bracket 2 can move at the lower part of the support seat 1 for position adjustment.

[0048] It also includes: a support tube 6, the left side of the support tube 6 is movably connected to the right end of the support tube 5, the right side of the support tube 6 is slidably connected with a jacket 7, and a positioning detection mechanism 8 is movably connected between the inside of the jacket 7 and the surface of the support tube 6, and the left end of the bearing steel tube is positioned and detected by the positioning detection mechanism 8. It should be noted that: a support bearing is fixedly connected between the right end of the support tube 5 and the upper part of the left side of the support seat 1, so that the support tube 5 can rotate with the support tube 6 and the jacket 7 on the upper part of the support seat 1 to perform bending detection.

[0049] A detection adjustment mechanism 9 cooperating with the positioning detection mechanism 8 is movably connected between the interior of the support tube 5 and the surface of the support seat 1, and the detection mode of the positioning detection mechanism 8 is switched during the rightward movement and resetting of the detection adjustment mechanism 9.

[0050] In this embodiment, Figures 1 to 14 As shown, the positioning detection mechanism 8 includes a movable groove 801, which is opened on the right side of the support tube 6, and the jacket 7 is slidably connected inside the movable groove 801. A compression spring 802 is fixedly connected between the left side of the jacket 7 and the inner wall of the movable groove 801. It should be noted that: the outer ring of the jacket 7 is provided with four sliders at equal distances along the circumference, and the inner wall of the movable groove 801 is provided with four slide grooves at equal distances along the circumference. The sliders are slidably connected inside the corresponding slide grooves, and the sliders cooperate with the slide grooves to enable the support tube 6 to rotate synchronously with the jacket 7 during the rotation process.

[0051] Three sink grooves 803 are provided on the right side of the jacket 7, and a U-shaped pressing plate 804 is slidably connected inside the sink groove 803, and oblique grooves 805 are provided on both sides of the U-shaped pressing plate 804. A cross bar 806 is slidably connected between the two sides of the inner wall of the sink groove 803, and the cross bar 806 is movably inserted between the two oblique grooves 805. A clamping plate 807 is fixedly connected to the middle of the cross bar 806, and an extrusion spring 808 is fixedly connected between the side wall of the U-shaped pressing plate 804 and the inner wall of the sink groove 803. It should be noted that: vertical grooves are provided on both sides of the inner wall of the sink groove 803, and the cross bar 806 is slidably connected between the two vertical grooves. When the U-shaped pressing plate 804 moves inside the sink groove 803, the oblique groove 805 on the U-shaped pressing plate 804 cooperates with the cross bar 806 to slide, so that the cross bar 806 slides along the vertical groove track.

[0052] A detection groove 809 is provided on the right side of the jacket 7, and the detection groove 809 and the three sink grooves 803 are equidistantly distributed on the right side of the jacket 7 along the circumference. The inner wall of the detection groove 809 is symmetrically provided with mounting holes 810, and the inner part of the mounting hole 810 is rotatably connected with a support shaft 811, and the opposite ends of the two support shafts 811 are fixedly connected with laser detection heads 812, and the two laser detection heads 812 are symmetrically arranged, and the surface of the support shaft 811 is movably connected with a transmission gear 813. It should be noted that the laser detection head 812 at the front side of the inner wall of the detection groove 809 detects the inner diameter curvature of the bearing steel tube, and the laser detection head 812 at the rear side of the inner wall of the detection groove 809 detects the outer diameter curvature of the bearing steel tube.

[0053] An adjusting ring 814 is fixedly connected to the left side of the jacket 7, and a spiral guide rail 815 that cooperates with the detection adjustment mechanism 9 is fixedly connected to the middle part of the inner circle of the adjusting ring 814. A push ring 816 that cooperates with the detection adjustment mechanism 9 is slidably connected inside the adjusting ring 814. The push ring 816 is movably sleeved on the surface of the support tube 5. A limiting spring 817 is fixedly connected between the right side of the push ring 816 and the left side of the jacket 7. A push rod 818 is symmetrically fixedly connected to the upper part of the right side of the jacket 7. The right end of the push rod 818 is movably inserted into the interior of the support tube 6. A mounting plate 819 that cooperates with the detection groove 809 is fixedly connected between the right ends of the two push rods 818. An adjusting rack 820 is symmetrically fixedly connected to the right side of the mounting plate 819. The two adjusting racks 820 correspond one to one to the two transmission gears 813. It should be noted that: when the jacket 7 moves toward the interior of the support tube 6, the mounting plate 819 can carry the adjusting rack 820 into the interior of the detection groove 809; when the pressure ring 902 is pressed against the surface of the push ring 816, the push ring 816 moves with the push rod 818 and the mounting plate 819, so that the two adjusting racks 820 are respectively engaged with the two transmission gears 813 for transmission, and the two laser detection heads 812 are set in opposite directions, so that the two laser detection heads 812 can detect different positions of the bearing steel pipe.

[0054] In this embodiment, Figures 1 to 14 As shown, a positioning rod is fixedly connected between the two sides of the inner wall of the sink 803, a positioning hole is opened in the middle of the clamping plate 807, and the clamping plate 807 is slidably connected to the surface of the positioning rod through the positioning hole. It should be noted that: through the cooperation of the positioning hole and the positioning rod, the clamping plate 807 is prevented from rotating inside the sink 803 to affect the use effect.

[0055] Ball bearings are fixedly connected to the opposite sides of the three clamping plates 807. It should be noted that: through the setting of the ball bearings, when the three clamping plates 807 clamp the bearing steel tube, the surface of the clamping plates 807 and the surface of the bearing steel tube are in a rolling friction mode, ensuring that the jacket 7 can rotate on the surface of the bearing steel tube after positioning, and the jacket 7 rotates with the laser detection head 812 to detect the curvature of the circumference of the bearing steel tube.

[0056] In this embodiment, Figures 1 to 14 As shown, a torsion spring is fixedly connected between the end of the support shaft 811 away from the laser detection head 812 and the inner wall of the mounting hole 810. It should be noted that the torsion spring allows the support shaft 811 to carry the flipped laser detection head 812 to reset.

[0057] The surfaces of the two support shafts 811 are fixedly sleeved with limit clutch rings, and the inner ring of the transmission gear 813 is fixedly connected to the outer ring of the corresponding limit clutch ring. It should be noted that: through the setting of the limit clutch ring, when the adjustment rack 820 is engaged with the corresponding transmission gear 813, under the action of the limit clutch ring, the limit clutch ring can rotate with the support shaft 811 and the laser detection head 812 under the action of friction resistance. When the laser detection head 812 is turned over and pressed against the surface of the bearing steel pipe, the rotation of the limit clutch ring can prevent overload damage, and will not continue to rotate with the support shaft 811.

[0058] In this embodiment, Figures 1 to 14 As shown, the detection and adjustment mechanism 9 includes an electric telescopic rod 901, which is provided with two electric telescopic rods 901, and the two electric telescopic rods 901 are symmetrically fixedly connected to the upper part of the left side of the support seat 1, and a pressure ring 902 matched with the push ring 816 is fixedly connected between the movable ends of the two electric telescopic rods 901, and the pressure ring 902 is movably sleeved on the surface of the support tube 5, and the outer wall of the pressure ring 902 is symmetrically fixedly connected with a ball head guide rod 903 matched with the spiral guide rail 815. It should be noted that: when the electric telescopic rod 901 is extended, it will carry the pressure ring 902 to press against the surface of the push ring 816, so that the push ring 816 moves toward the side wall of the support tube 6.

[0059] A connecting rod 904 is slidably connected inside the support tube 5, and the right end of the connecting rod 904 is fixedly connected to the left side of the support tube 6. A movable groove 905 is symmetrically provided on the left side of the connecting rod 904. A U-shaped block 906 is slidably connected inside the movable groove 905. A return spring 907 is fixedly connected between the surface of the U-shaped block 906 and the inner wall of the movable groove 905. Rectangular grooves 908 are symmetrically provided on the surface of the support tube 5, and the two rectangular grooves 908 correspond one-to-one to the two U-shaped blocks 906. One end of the U-shaped block 906 passes through the rectangular groove 908 and overlaps the side wall of the pressure ring 902. It should be noted that: when the U-shaped block 906 moves to the extreme position inside the movable groove 905, the U-shaped block 906 can only release the overlapping state with the pressure ring 902, and the U-shaped block 906 will not be separated from the rectangular groove 908 on the support tube 5, and a guide groove is opened on the right side of the inner wall of the support tube 5, and a guide block is fixedly connected to the right side of the connecting rod 904, and the guide block is slidably connected to the inside of the guide groove to ensure that the adjustment ring 814 can rotate with the support tube 6, the jacket 7 and the support tube 5 stably in the upper position on the left side of the support seat 1 during the rotation process.

[0060] A limiting sleeve 909 is fixedly connected to the right side of the inner wall of the rectangular groove 908, and a T-shaped limiting rod 910 is symmetrically and slidably connected inside the limiting sleeve 909. A limiting hole 911 that matches the T-shaped limiting rod 910 is symmetrically opened on the inner wall of the U-shaped block 906, and a reset spring 912 is fixedly connected between the two T-shaped limiting rods 910. The top and bottom of the limiting sleeve 909 are both provided with strip grooves 913 that match the T-shaped limiting rod 910. An L-shaped through groove 914 is opened in the middle of the rectangular groove 908, and an L-shaped recovery rod 915 that matches the pressure ring 902 is slidably connected inside the L-shaped through groove 914. The right end of the L-shaped recovery rod 915 is fixedly connected with a U-shaped reset plate 916 that matches the T-shaped limiting rod 910, and the U-shaped reset plate 916 is movably sleeved on the surface of the corresponding limiting sleeve 909. It should be noted that: when the U-shaped block 906 moves toward the inside of the movable groove 905 to the continuing position, the limiting hole 911 on the U-shaped block 906 and the end of the T-shaped limiting rod 910 on the surface of the limiting sleeve 909 are on the same horizontal line. When the U-shaped block 906 and the connecting rod 904 move to the position of the limiting sleeve 909, the T-shaped limiting rod 910 cooperates with the limiting hole 911 to restrict the connecting rod 904 to the inner wall position of the support tube 5. At this time, the connecting rod 904, the support tube 6 and the jacket 7 can no longer translate, ensuring the stability of the jacket 7 after clamping the left end of the bearing steel tube.

[0061] A reset rod 917 is symmetrically fixedly connected to the right side of the inner wall of the rectangular groove 908, and wedge-shaped reset blocks 918 are fixedly connected to both sides of the U-shaped block 906, and the two wedge-shaped reset blocks 918 correspond to the two reset rods 917. It should be noted that after the reset rod 917 contacts and the wedge-shaped reset blocks 918, during the sliding process, the U-shaped block 906 can move into the inside of the movable groove 905.

[0062] In this embodiment, Figures 1 to 14 As shown, a chamfer matching with a T-shaped limiting rod 910 is provided on one side of the U-shaped clamping block 906 close to the limiting sleeve 909 .

[0063] The limiting sleeve 909 is arranged at the middle position of the U-shaped block 906 .

[0064] In this embodiment, Figures 1 to 14 As shown, the two ends of the U-shaped reset plate 916 are set in a V shape, and the width of the U-shaped reset plate 916 is set to 0.8 times the distance between the two sides of the inner wall of the U-shaped block 906. It should be noted that: the above distance setting avoids interference during the movement of the U-shaped block 906 toward the U-shaped reset plate 916; when the pressure ring 902 is reset and moves to the left to the extreme position, the pressure ring 902 moves with the L-shaped recovery rod 915 inside the L-shaped through groove 914, so that the L-shaped recovery rod 915 moves with the U-shaped reset plate 916, and at this time, the U-shaped reset plate 916 presses the two T-shaped limit rods 910 to move relative to each other, so that the T-shaped limit rod 910 is released from the plug-in connection with the limit hole 911, and then the connecting rod 904 is released from the limit state with the support tube 5.

[0065] In this embodiment, Figures 1 to 14 As shown, a method for using a bearing steel tube bending detection device comprises the following steps:

[0066] S1. When in use, firstly, the inner diameter position of the right end of the bearing steel tube is positioned and supported by the inner diameter tensioner 4, and then the electric telescopic rod 901 on the left side of the support seat 1 is started, so that the electric telescopic rod 901 with the pressure ring 902 is pressed against the side wall position of the two U-shaped blocks 906, so that the U-shaped blocks 906 with the connecting rod 904, the support tube 6 and the jacket 7 move to the left end position of the bearing steel tube;

[0067] S2. When the U-shaped pressing plate 804 on the right side of the jacket 7 contacts the end face of the bearing steel tube, the U-shaped pressing plate 804 moves toward the inside of the sink 803 after being pressed. At this time, the inclined groove 805 on the U-shaped pressing plate 804 slides with the cross bar 806 on the inner wall of the sink 803, so that the clamping plate 807 moves inside the sink 803. At this time, the three clamping plates 807 move relatively to clamp and position the left side of the bearing steel tube. Then, the pressure ring 902 continues to move the jacket 7 to the right. Under the restriction of the bearing steel tube, the jacket 7 moves toward the inside of the support tube 6 to avoid interference.

[0068] S3, when the pressure ring 902 moves with the U-shaped block 906 to the right side of the inner wall of the rectangular groove 908, the wedge-shaped reset block 918 on the side wall of the U-shaped block 906 contacts the reset rod 917 on the inner wall of the rectangular groove 908, and the wedge-shaped reset block 918 moves with the U-shaped block 906 to the inside of the movable groove 905, so that the U-shaped block 906 is released from contact with the pressure ring 902. At the same time, the U-shaped block 906 moves to the position of the limiting sleeve 909 on the right side of the rectangular groove 908, so that the T-shaped limiting rod 910 on the limiting sleeve 909 is inserted into the limiting hole 911 on the inner wall of the U-shaped block 906, and the connecting rod 904 is restricted together with the support tube 6, so that the three clamping plates 807 on the right side of the jacket 7 cannot continue to move horizontally after clamping the bearing steel pipe and maintain a stable state;

[0069] S4, then the pressure ring 902 continues to move rightward on the surface of the support tube 6. When the pressure ring 902 presses against the side wall of the push ring 816, the push ring 816 moves inside the detection groove 809 with the push rod 818 and the adjusting rack 820, so that the adjusting rack 820 is meshed with the transmission gear 813 on the support shaft 811 for transmission. Under the action of the limit clutch ring, the laser detection head 812 at the rear side of the detection groove 809 is turned over and overlapped on the outer ring position of the bearing steel tube, and the pressure ring 902 that continues to move moves with the ball head guide rod 903 to the position of the spiral guide rail 815, so that the ball head guide rod 903 moves along the trajectory of the surface of the spiral guide rail 815. At this time, the adjusting ring 814 rotates with the support tube 6, the jacket 7, the connecting rod 904 and the support tube 5 on the surface of the support seat 1, so that the rotating laser detection head 812 performs curvature detection on the outer diameter of the bearing steel tube.

[0070] S5. When the pressure ring 902 moves to the limit position inside the adjustment ring 814, the right end of the bearing steel tube is clamped by the outer diameter clamp 3 on the fixed bracket 2, and the inner diameter tensioner 4 contracts and releases the positioning state, and then the electric telescopic rod 901 is started to contract and move the pressure ring 902 to reset. At this time, the push ring 816 is elastically restored by the limit spring 817 and moves the adjustment rack 820 to reset. Under the action of another limit clutch ring, the laser detection head 812 at the front position inside the detection groove 809 is flipped and overlapped on the inner ring position of the bearing steel tube. At the same time, the reset pressure ring 902 slides with the ball head guide rod 903 and the surface of the spiral guide rail 815, so that the adjustment ring 814 rotates in the opposite direction with the support tube 6, the jacket 7, the connecting rod 904 and the support seat 1, and the bending of the detection probe at the inner diameter position of the bearing steel tube is detected.

[0071] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A device for detecting the curvature of a bearing steel tube, comprising: A support seat (1), a fixed bracket (2) is movably mounted on the upper part of the right side of the support seat (1), an outer diameter clamp (3) is fixedly connected to the upper part of the fixed bracket (2), an inner diameter tensioner (4) is movably mounted in the middle part of the outer diameter clamp (3), and a support tube (5) is rotatably connected to the upper part of the left side of the support seat (1); The invention is characterized in that it further comprises: a support cylinder (6), the left side of the support cylinder (6) is movably connected to the right end of the support tube (5), the right side of the support cylinder (6) is slidably connected to a jacket (7), and a positioning detection mechanism (8) is movably connected between the inside of the jacket (7) and the surface of the support cylinder (6), and the left end of the bearing steel tube is positioned and detected by the positioning detection mechanism (8); A detection adjustment mechanism (9) that cooperates with the positioning detection mechanism (8) is movably connected between the interior of the support tube (5) and the surface of the support seat (1), and the detection mode of the positioning detection mechanism (8) is switched during the rightward movement and resetting of the detection adjustment mechanism (9).

2. A bearing steel tube bending detection device according to claim 1, characterized in that: The positioning detection mechanism (8) comprises a movable groove (801), the movable groove (801) is arranged on the right side of the support tube (6), the jacket (7) is slidably connected inside the movable groove (801), and a compression spring (802) is fixedly connected between the left side of the jacket (7) and the inner wall of the movable groove (801); The right side of the jacket (7) is provided with three sinking grooves (803), the interior of the sinking groove (803) is slidably connected with a U-shaped pressing plate (804), both sides of the U-shaped pressing plate (804) are provided with inclined grooves (805), a cross bar (806) is slidably connected between the two sides of the inner wall of the sinking groove (803), the cross bar (806) is movably inserted between the two inclined grooves (805), a clamping plate (807) is fixedly connected to the middle of the cross bar (806), and a compression spring (808) is fixedly connected between the side wall of the U-shaped pressing plate (804) and the inner wall of the sinking groove (803); A detection groove (809) is provided on the right side of the jacket (7), and the detection groove (809) and the three sink grooves (803) are equidistantly distributed on the right side of the jacket (7) along the circumference, and mounting holes (810) are symmetrically provided on the inner wall of the detection groove (809), and a support shaft (811) is rotatably connected inside the mounting hole (810), and laser detection heads (812) are fixedly connected to opposite ends of the two support shafts (811), and the two laser detection heads (812) are symmetrically arranged, and a transmission gear (813) is movably connected to the surface of the support shaft (811); The left side of the jacket (7) is fixedly connected with an adjustment ring (814), the middle part of the inner circle of the adjustment ring (814) is fixedly connected with a spiral guide rail (815) that cooperates with the detection adjustment mechanism (9), the inside of the adjustment ring (814) is slidably connected with a push ring (816) that cooperates with the detection adjustment mechanism (9), the push ring (816) is movably sleeved on the surface of the support tube (5), and a limit spring is fixedly connected between the right side of the push ring (816) and the left side of the jacket (7). (817), a push rod (818) is symmetrically fixedly connected to the upper part of the right side of the sleeve (7), and the right end of the push rod (818) is movably inserted into the interior of the support tube (6), and a mounting plate (819) that matches the detection groove (809) is fixedly connected between the right ends of the two push rods (818), and an adjustment rack (820) is symmetrically fixedly connected to the right side of the mounting plate (819), and the two adjustment racks (820) correspond one to one to the two transmission gears (813).

3. A bearing steel tube bending detection device according to claim 2, characterized in that: A positioning rod is fixedly connected between the two sides of the inner wall of the sink (803), a positioning hole is opened in the middle of the clamping plate (807), and the clamping plate (807) is slidably connected to the surface of the positioning rod through the positioning hole; The opposite sides of the three clamping plates (807) are all fixedly connected with balls.

4. A bearing steel tube bending detection device according to claim 3, characterized in that: A torsion spring is fixedly connected between one end of the support shaft (811) away from the laser detection head (812) and the inner wall of the mounting hole (810); The surfaces of the two support shafts (811) are both fixedly sleeved with limit clutch rings, and the inner ring of the transmission gear (813) is fixedly connected to the outer ring of the corresponding limit clutch ring.

5. A bearing steel tube bending detection device according to claim 4, characterized in that: The detection and adjustment mechanism (9) comprises an electric telescopic rod (901), wherein the number of the electric telescopic rod (901) is two, and the two electric telescopic rods (901) are symmetrically fixedly connected to the upper part of the left side of the support seat (1), and a pressure ring (902) matching with a push ring (816) is fixedly connected between the movable ends of the two electric telescopic rods (901), and the pressure ring (902) is movably sleeved on the surface of the support tube (5), and the outer wall of the pressure ring (902) is symmetrically fixedly connected with a ball head guide rod (903) matching with a spiral guide rail (815); The support tube (5) is internally slidably connected with a connecting rod (904), the right end of the connecting rod (904) is fixedly connected to the left side of the support tube (6), the left side of the connecting rod (904) is symmetrically provided with a moving groove (905), the inside of the moving groove (905) is slidably connected with a U-shaped block (906), a return spring (907) is fixedly connected between the surface of the U-shaped block (906) and the inner wall of the moving groove (905), the surface of the support tube (5) is symmetrically provided with a rectangular groove (908), the two rectangular grooves (908) correspond one to one with the two U-shaped blocks (906), one end of the U-shaped block (906) passes through the rectangular groove (908) and overlaps with the side wall of the pressure ring (902); A limiting sleeve (909) is fixedly connected to the right side of the inner wall of the rectangular groove (908); a T-shaped limiting rod (910) is symmetrically slidably connected inside the limiting sleeve (909); limiting holes (911) matching the T-shaped limiting rod (910) are symmetrically opened on the inner wall of the U-shaped block (906); a reset spring (912) is fixedly connected between the two T-shaped limiting rods (910); and a reset spring (912) is fixedly connected between the top and the bottom of the limiting sleeve (909) and the T-shaped limiting rod (910). 10), an L-shaped through groove (914) is provided in the middle of the rectangular groove (908), an L-shaped recovery rod (915) matching with the pressure ring (902) is slidably connected inside the L-shaped through groove (914), a U-shaped reset plate (916) matching with the T-shaped limit rod (910) is fixedly connected at the right end of the L-shaped recovery rod (915), and the U-shaped reset plate (916) is movably sleeved on the surface corresponding to the limit sleeve (909); A reset rod (917) is symmetrically fixedly connected to the right side of the inner wall of the rectangular groove (908), and wedge-shaped reset blocks (918) are fixedly connected to both sides of the U-shaped clamping block (906), and the two wedge-shaped reset blocks (918) correspond one to one to the two reset rods (917).

6. A bearing steel tube bending detection device according to claim 5, characterized in that: The U-shaped clamping block (906) is provided with a chamfer on one side close to the limiting sleeve (909) to match the T-shaped limiting rod (910); The limiting sleeve (909) is arranged at the middle position of the U-shaped clamping block (906).

7. A bearing steel tube bending detection device according to claim 6, characterized in that: The two ends of the U-shaped reset plate (916) are arranged in a V shape, and the width of the U-shaped reset plate (916) is set to 0.8 times the distance between the two sides of the inner wall of the U-shaped block (906).

8. A detection method for a bearing steel tube bending detection device, characterized in that: Using a bearing steel tube bending detection device as described in any one of claims 1 to 7 comprises the following steps: S1. When in use, firstly, the inner diameter position of the right end of the bearing steel tube is positioned and supported by the inner diameter tensioner (4), and then the electric telescopic rod (901) on the left side of the support seat (1) is started, so that the electric telescopic rod (901) with the pressure ring (902) is pressed against the side wall position of the two U-shaped blocks (906), so that the U-shaped blocks (906) with the connecting rod (904), the support tube (6) and the jacket (7) are moved to the left end position of the bearing steel tube; S2. When the U-shaped pressure plate (804) on the right side of the jacket (7) contacts the end face of the bearing steel tube, the U-shaped pressure plate (804) moves toward the inside of the sink groove (803) after being pressed. At this time, the inclined groove (805) on the U-shaped pressure plate (804) and the cross bar (806) at the inner wall position of the sink groove (803) cooperate and slide, so that the clamping plate (807) moves inside the sink groove (803). At this time, the three clamping plates (807) move relatively to clamp and position the left side of the bearing steel tube. Then, the pressure ring (902) continues to move the jacket (7) to the right. Under the restriction of the bearing steel tube, the jacket (7) will move toward the inside of the support tube (6) to avoid interference. S3, when the pressure ring (902) moves with the U-shaped block (906) to the right side of the inner wall of the rectangular groove (908), the wedge-shaped reset block (918) on the side wall of the U-shaped block (906) contacts the reset rod (917) on the inner wall of the rectangular groove (908), and the wedge-shaped reset block (918) moves with the U-shaped block (906) toward the inside of the movable groove (905), so that the U-shaped block (906) is released from contact with the pressure ring (902) At the same time, the U-shaped clamping block (906) moves to the position of the limiting sleeve (909) on the right side of the rectangular groove (908), so that the T-shaped limiting rod (910) on the limiting sleeve (909) is inserted into the limiting hole (911) on the inner wall of the U-shaped clamping block (906), and the connecting rod (904) and the supporting tube (6) are restricted together, so that the three clamping plates (807) on the right side of the clamping sleeve (7) cannot continue to move horizontally after clamping the bearing steel pipe and maintain a stable state; S4, the pressure ring (902) continues to move rightward on the surface of the support tube (6). When the pressure ring (902) presses against the side wall of the push ring (816), the push ring (816) moves the push rod (818) and the adjustment rack (820) inside the detection groove (809), so that the adjustment rack (820) and the transmission gear (813) on the support shaft (811) are meshed and transmitted. Under the action of the limit clutch ring, the laser detection head (812) at the rear side of the detection groove (809) is The pressure ring (902) is turned over and overlapped at the outer ring position of the bearing steel tube, and the pressure ring (902) continues to move and moves the ball head guide rod (903) to the position of the spiral guide rail (815), so that the ball head guide rod (903) moves along the track of the surface of the spiral guide rail (815). At this time, the adjustment ring (814) rotates with the support tube (6), the jacket (7), the connecting rod (904) and the support tube (5) on the surface of the support seat (1), so that the rotating laser detection head (812) detects the curvature of the outer diameter of the bearing steel tube; S5. When the pressure ring (902) moves to the limit position inside the adjustment ring (814), the right end of the bearing steel tube is clamped by the outer diameter clamp (3) on the fixed bracket (2), and the inner diameter tensioner (4) is contracted and the positioning state is released. Then, the electric telescopic rod (901) is started to contract and move the pressure ring (902) back to the original position. At this time, the push ring (816) is elastically restored by the limit spring (817) and moves the adjustment rack (820) back to the original position. Under the action of the limit clutch ring, the laser detection head (812) at the front side of the detection groove (809) is turned over and overlapped at the inner ring position of the bearing steel tube. At the same time, the reset pressure ring (902) brings the ball head guide rod (903) to slide with the surface of the spiral guide rail (815), so that the adjustment ring (814) brings the support tube (6), the jacket (7), the connecting rod (904) and the support seat (1) to rotate in the opposite direction, and the bending degree of the detection probe at the inner diameter position of the bearing steel tube is detected.

Images