Arc screw thread detection device

Abstract

The invention relates to the technical field of thread detection, in particular to an arc screw thread detection device which comprises a material guide box, a movable bin is formed in the inner side wall of the material guide box, an electric baffle is rotationally connected into a cavity of the movable bin, and an arc screw is placed at the upper end of the electric baffle. An electromagnetic induction block abutting against the arc screw is installed on the inner side wall of the material guiding box, and an electromagnetic induction piece abutting against the arc screw is movably connected to the outer side wall of the material guiding box. A third spring stores elastic potential energy so that damage can be reduced when the go-no-go ring gauge cannot be sleeved in a threaded mode, meanwhile, an inclined block is pushed through a bevel edge push block so that a positioning rod can be inserted into a clamping groove, a gear rod can be rapidly stopped when the go-no-go ring gauge and an arc screw can be sleeved and clamped, and the go-no-go ring gauge is prevented from being further damaged.

Description

Technical Field

[0001] The invention relates to the technical field of thread detection, and in particular to a circular arc screw thread detection device. Background Art

[0002] The accuracy of the geometric features and parameters of mechanical parts is the key to ensuring the quality of product assembly. Arc screws are commonly used parts in mechanical production and assembly. The quality and accuracy of their parameters have an important impact on product quality and production safety. Therefore, in the production and processing of arc screws, it is necessary to test and analyze their important parameters to verify whether they meet production standards.

[0003] Existing detection devices use eddy current flaw detection technology to use electromagnetic induction phenomenon to detect surface defects and hardness of conductors. When there are defects or foreign matter on the surface of the conductor, it will affect the eddy current, thereby changing the magnetic field distribution. This change can be detected and converted into an electrical signal, and then the conductor is non-destructively tested. However, since it is impossible to detect whether the center diameter of the screw is qualified, it is necessary to further measure the center diameter of the screw through a ring gauge or a stop ring gauge. However, when the machine uses a go and stop ring gauge, as the go and stop ring gauge is pushed and rotated in the direction of the screw, if the size does not match, the interface of the go and stop ring gauge is easily damaged during the advancement process. In addition, if a jam occurs during the thread fitting process, if the machine cannot be stopped in time, the thread in the ring gauge cavity is easily damaged. Summary of the invention

[0004] The purpose of the invention is to provide a subject matter to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a circular arc screw thread detection device, comprising a material guide box, an inner wall of the material guide box is provided with a movable bin, an electric baffle is rotatably connected in the cavity of the movable bin, an arc screw is placed on the upper end of the electric baffle, an electromagnetic induction block that contacts the circular arc screw is installed on the inner wall of the material guide box, an electromagnetic induction sheet that contacts the circular arc screw is movably connected to the outer wall of the material guide box, a torsion spring shaft connected to the outer wall of the material guide box is fixedly installed on one side of the electromagnetic induction sheet, a mounting platform is fixedly connected to one side of the material guide box, a placement platform is welded on the inner wall of the mounting platform, and a group of inclined blocks are movably connected to the upper and lower ends of the placement platform, each A positioning rod is welded on one side of the inclined block close to the mounting platform, and one end of the positioning rod is movably connected to the mounting platform away from the inclined block, and one end of the positioning rod is movably connected to a resistance rod, and a resistance spring is provided at the connection between the resistance rod and the positioning rod, and each group of inclined blocks is resisted by a beveled push block on both sides, and the beveled push block is movably connected to the inside of the mounting platform, and the outer wall of the mounting platform is rotatably connected to a gear ring 1, and a plurality of engaging grooves are provided on the inner wall of the gear ring 1 at equal intervals, and the engaging grooves are adapted to the resistance rod, and a movable rod is fixedly installed on one side of the inclined block, and a clamping cylinder is movably connected to one end of the movable rod away from the inclined block, and a plurality of movable clamping plates are installed on the inner wall of the clamping cylinder;

[0006] A driving gear is meshed on one side of the gear ring one, one end of the driving gear is fixedly connected to a gear rod, one side of the gear rod is meshed with a gear ring two, and a go and stop ring gauge is fixedly installed on the inner side wall of the gear ring two.

[0007] Preferably, the positioning rod is sleeved with a spring 1 that contacts the mounting platform, a circular arc groove movably connected to the movable rod is opened on one side of the clamping cylinder, a movable block movably connected to the clamping cylinder is fixedly installed on one side of the clamping plate, contact plates are fixedly installed on both sides of the movable block, and a spring 2 that contacts the clamping cylinder is welded on one side of the contact plate.

[0008] Preferably, a cylinder shell is fixedly mounted on the outer side wall of the clamping cylinder, a small motor is fixedly mounted on the side of the cylinder shell away from the mounting platform, the output end of the small motor extends into the cavity of the cylinder shell and a winding wheel is fixedly mounted thereon, a fastening rope is wound around the outer side wall of the winding wheel, a connecting block movably connected to the fastening rope is mounted on the upper end of the clamping cylinder, and a plurality of supporting blocks slidably connected to the fastening rope are fixedly mounted on the outer side wall of the clamping cylinder.

[0009] Preferably, a sliding cylinder is fixedly installed on the side of the go and stop ring gauge away from the clamping cylinder, a sliding cylinder 2 is movably connected to the outer wall of the sliding cylinder, a spring 3 is fixedly installed on the outer wall of the sliding cylinder 2, and a connecting ring fixedly connected to the go and stop ring gauge is welded at one end of the spring 3.

[0010] Preferably, the sliding cylinder 2 is rotatably connected to a bearing on the side away from the stop ring gauge, a connecting plate is fixedly installed on one side of the bearing, positioning plates are fixedly installed at both ends of the connecting plate, a support platform is welded to the lower end of the positioning plate, a positioning cylinder is sleeved on the outer side of the spring 3, the positioning cylinder is rotatably connected to the sliding cylinder 2, and two blocking leaves are fixedly installed on the side of the positioning cylinder close to the stop ring gauge, the blocking leaves are engaged on the spring 3 and the lower end of the positioning cylinder.

[0011] Preferably, a driving motor is fixedly mounted on the upper end of the support platform, a belt is sleeved on the output end of the driving motor, the other end of the belt is sleeved on the gear rod, the upper end of the support platform is connected to a unloading channel, a marking platform is fixedly mounted on one side of the unloading channel, the marking platform is rotatably connected to a marking rod close to the clamping cylinder, and the upper end of the support platform is fixedly connected to the positioning cylinder.

[0012] Preferably, a material storage box is fixedly installed on the side of the material guide box away from the mounting table, a guide plate is installed on the bottom of the inner cavity of the material storage box, a plurality of arc screws are placed on the upper end of the guide plate, a linear electric cylinder is fixedly installed on one side of the material guide box, a push rod movably connected to the material storage box is fixedly installed on the output end of the linear electric cylinder, and an insulating block is installed on the side of the push rod close to the material guide box.

[0013] Preferably, a cylinder is fixedly mounted on one side of the material guide box, an electromagnetic suction rod is fixedly mounted on the output end of the cylinder, the electromagnetic suction rod is movably connected to the material guide box, and a waste box is mounted on the side of the material guide box away from the material storage box.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The arc screw is clamped by the clamping plate, so that the two are in contact and generate friction. If the stop ring gauge and the arc screw thread are suddenly stuck during the process of fitting, the clamping cylinder will rotate with the arc screw at this time. The rotation of the clamping cylinder can buffer the rotation of the stop ring gauge and the arc screw to prevent further damage to the connection. When the clamping cylinder rotates, the movable rod on the other side will be resisted by the side of the arc groove, so that the bevel push block is driven to move in an arc shape through the movable rod. The movement of the bevel push block will push the bevel block to move in the direction of the mounting platform. When the bevel block moves, the positioning rod will move in the direction of the gear ring 1. When the positioning rod drives the resistance rod to insert into the cavity of the engaging groove, the gear ring 1 will stop rotating. The gear ring 1 stops driving the driving gear and the gear rod to stop, so that the stop ring gauge is no longer driven by the gear rod to continue rotating, preventing the stop ring gauge from further rotating while being stuck out and causing damage to the inner wall;

[0016] 2. The gear rod is driven to rotate by the driving motor, and the rotation of the gear rod drives the check ring gauge to rotate at the same time. As the check ring gauge rotates, the sliding cylinder, spring three and sliding cylinder two are driven to rotate in the cavity of the positioning cylinder. As the check ring gauge continues to rotate, the spring three blocked by the barrier leaf will be released, thereby pushing the check ring gauge to move in the direction of the clamping cylinder, and the sliding cylinder is also drawn out from the inside of the sliding cylinder two. As the check ring gauge is pushed by the spring three, the notch of the check ring gauge will conflict with the threaded end of the arc screw. When the check ring gauge and the arc screw cannot be threaded together through the push of the spring three, if the push continues to move forward, the force applied to the arc screw will be transferred to the spring, so that the spring three coming out of the positioning cylinder begins to shrink and store elastic potential energy, so as to avoid excessive resistance of the check ring gauge to the arc screw, thereby causing damage to the check ring gauge;

[0017] 3. The linear electric cylinder drives the push rod to move the piston, pushing the arc screw inside the storage box into the cavity of the guide box, so that the arc screw is placed between the electromagnetic induction block and the electromagnetic induction sheet and contacts each other. Electromagnetic induction is used to determine whether the material or surface of the arc screw is damaged. If damaged, the arc screw is pushed into the waste box. If the material and surface of the arc screw are not damaged, the electric baffle starts to rotate to make the arc screw roll to the bottom of the inner cavity of the guide box, and then the cylinder pushes the arc screw to The slot of the mounting table, when the arc screw enters the mounting table slot and is then pushed toward the clamping cylinder, the arc screw will be blocked by the side of the clamping plate at this time, and the small motor is started to drive the winding wheel to rotate, so that the winding wheel reels in the line and tightens the movable block. While the movable block is tightened, it pushes the clamping plate toward the direction of the arc screw, thereby clamping the arc screw on the clamping plate. This mechanism makes it possible to quickly detect whether there is a problem with the surface structure of the arc screw and perform a second round of mid-diameter detection on the arc screw clamping without any problem. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments:

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the gear rod of the present invention;

[0021] Figure 3 It is a structural schematic diagram of the winding wheel of the present invention;

[0022] Figure 4 For the present invention Figure 3 A local enlarged view of point A in FIG.

[0023] Figure 5 It is a structural schematic diagram of the inclined block of the present invention;

[0024] Figure 6 It is a partial structural schematic diagram of the placement platform of the present invention;

[0025] Figure 7 It is a partial cross-sectional structural schematic diagram of the placement platform of the present invention;

[0026] Figure 8 It is a structural disassembly diagram of the positioning tube of the present invention;

[0027] Fig. 9 It is a three-dimensional cross-sectional view of the positioning tube of the present invention;

[0028] Fig.10 For the present invention Fig. 9 A local enlarged view of point B in FIG.

[0029] Fig.11 It is a schematic diagram of the local structure of the electromagnetic induction sheet of the present invention;

[0030] Fig.12 It is a three-dimensional cross-sectional view of the material guide box of the present invention;

[0031] Fig.13 It is a schematic diagram of the local structure of the insulating block of the present invention;

[0032] Fig.14 This is a schematic diagram of the flaw detection principle for initial detection of arc screws of the present invention.

[0033] Description of reference numerals:

[0034] 1. Material guide box; 2. Arc screw; 3. Electromagnetic induction block; 4. Torsion spring shaft; 5. Electromagnetic induction sheet; 6. Electric baffle; 7. Movable bin; 8. Mounting table; 9. Placement table; 10. Oblique block; 11. Bevel push block; 12. Positioning rod; 121. Resistance spring; 122. Resistance rod; 13. Spring 1; 14. Gear ring 1; 15. Engagement groove; 16. Movable rod; 17. Arc groove; 18. Clamping cylinder; 181. Cylinder shell; 19. Clamping plate; 20. Driving gear; 21. Gear rod; 22. Go and stop ring gauge; 23. Gear ring 2; 24. Small motor; 25. Winding wheel; 26. Connecting block; 27. Fastening rope; 28. Support block; 29. ​​Movable block; 30. Contact plate; 31. Spring 2; 32. Connecting ring; 33. Positioning cylinder; 34. Bearing; 35. Connecting plate; 36. Sliding cylinder 1; 37. Spring 3; 38. Barrier leaf; 39. Positioning plate; 40. Support table; 401. Unloading channel; 41. Sliding cylinder 2; 42. Driving motor; 43. Belt; 44. Marking table; 45. Marking rod; 46. Storage box; 47. Linear electric cylinder; 48. Push rod; 49. Insulating block; 50. Guide plate; 51. Cylinder; 52. Electromagnetic suction rod; 53. Waste box. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings 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.

[0036] See also Figure 1-Figure 14 The present invention provides a technical solution: a circular arc screw thread detection device, comprising a material guide box 1, the inner side wall of the material guide box 1 is provided with a movable bin 7, the cavity of the movable bin 7 is rotatably connected with an electric baffle 6, and a circular arc screw 2 is placed on the upper end of the electric baffle 6. The electric baffle 6 can be rotated so that one end of the electric baffle 6 contacts the inner side wall of the material guide box 1, so that the circular arc screw 2 is lifted on the electric baffle 6, and when the electric baffle 6 rotates in the direction of the movable bin 7, it can move to the groove of the movable bin 7. The arc screw 2 rolls down along the slope of the electric baffle 6 to the bottom of the inner cavity of the guide box 1. The inner wall of the guide box 1 is equipped with an electromagnetic induction block 3 that contacts the arc screw 2. The outer wall of the guide box 1 is movably connected with an electromagnetic induction sheet 5 that contacts the arc screw 2. One side of the electromagnetic induction sheet 5 is fixedly equipped with a torsion spring shaft 4 connected to the outer wall of the guide box 1. One side of the guide box 1 is fixedly connected with a mounting platform 8. The inner wall of the mounting platform 8 is welded with a placement platform 9. The inner cavity bottom of the guide box 1 is connected to the placement platform 9. The upper and lower ends of the placement platform 9 are slidably connected to two inclined blocks 10, and the outer walls of the two inclined blocks 10 on the same side are welded with positioning rods 12, and the end of the positioning rod 12 away from the inclined block 10 is inserted into the interior of the mounting platform 8, and one end of the positioning rod 12 is also inserted with a resistance rod 122, and the resistance rod 122 is located inside the mounting platform 8. A resistance spring 121 is provided between the resistance rod 122 and the inner cavity bottom of the positioning rod 12, and the upper and lower ends of the placement platform 9 are slidably connected to Two bevel push blocks 11, the bevel push block 11 on the same side conflicts with the bevel block 10, the outer wall of the mounting platform 8 is rotatably connected with a gear ring 14, the inner wall of the gear ring 14 is provided with a plurality of engaging grooves 15 at equal intervals, the engaging grooves 15 can be plugged with the conflicting rod 122, a movable rod 16 is fixedly installed on one side of the bevel push block 11, and one end of the movable rod 16 away from the bevel push block 11 is movably connected with a clamping tube 18, and a plurality of movable clamping plates 19 are installed on the inner wall of the clamping tube 18.

[0037] Specifically, the two sides of the two inclined blocks 10 on the same side are both provided with beveled edges on their opposite sides, and the side of the beveled push block 11 that is in contact with the inclined block 10 is also provided with a beveled edge. When the beveled push block 11 slides in the direction close to the inclined block 10, it will push the inclined block 10 to slide in the direction of the mounting platform 8. When the inclined block 10 moves, the positioning rod 12 will also slide on the inner wall of the mounting platform 8. When the positioning rod 12 moves, it will drive the resistance rod 122 to insert into the inside of the engaging groove 15. At the same time, if the notch of the resistance rod 122 and the engaging groove 15 cannot be aligned with the center of the circle, the resistance spring 121 begins to compress. At this time, the engaging groove 15 rotates with the rotation of the gear ring 14. When the notch of the resistance rod 122 and the engaging groove 15 are aligned with the center of the circle, the resistance spring 121 will push the resistance rod 122 into the engaging groove 15, thereby stopping the rotation of the gear ring 14.

[0038] A driving gear 20 is meshed on one side of the gear ring 14, and a gear rod 21 is fixedly connected to one end of the driving gear 20. A gear ring 23 is meshed on one side of the gear rod 21. A stop ring gauge 22 is fixedly installed on the inner side wall of the gear ring 23. A spring 13 that contacts the mounting platform 8 is sleeved on the positioning rod 12. When the bevel push block 11 no longer applies thrust to the bevel block 10, the elastic restoring force of the spring 13 causes the contact rod 122 to be pushed out of the groove of the engaging groove 15, and the bevel block 10 is pushed back to its original position by the positioning rod 12. An arc groove 17 slidably connected to the movable rod 16 is provided on one side of the clamping cylinder 18. When the clamping cylinder 18 rotates, the inner side wall of the arc groove 17 will push one of the movable rods 16 to move, and the movable rod on the same side will move. 16 will slide in the arc groove 17, a movable block 29 slidably connected to the clamping tube 18 is fixedly installed on one side of the clamping plate 19, and a contact plate 30 is fixedly installed on both sides of the movable block 29. A spring 31 that contacts the clamping tube 18 is welded on one side of the contact plate 30, and a cylinder shell 181 is fixedly installed on the outer wall of the clamping tube 18. A small motor 24 is fixedly installed on the side of the cylinder shell 181 away from the mounting platform 8, and the output end of the small motor 24 extends into the cavity of the cylinder shell 181 and is fixedly installed with a winding wheel 25, and a fastening rope 27 is wound around the outer wall of the winding wheel 25. A connecting block 26 movably connected to the fastening rope 27 is installed on the upper end of the clamping tube 18, and a plurality of supporting blocks 28 slidably connected to the fastening rope 27 are fixedly installed on the outer wall of the clamping tube 18.

[0039] Specifically, when the check ring 22 moves in the direction of the clamping tube 18, the gear ring 23 fixedly connected to the check ring 22 is always in meshing state with the gear rod 21, and only slight wear will be caused during the movement, and the meshing transmission between the gear rod 21 and the gear ring 23 will not be affected. The notch formed at the initial position of the clamping plate 19 is smaller than the size of the head of the arc screw 2. At this time, pushing the arc screw 2 in the direction of the check ring 22 will be blocked by one side of the clamping plate 19. When the gear rod 21 rotates, the gear ring 23 meshes with the gear rod 21 to drive the check ring 22 to rotate. At the same time, the gear rod 21 drives the driving gear 20 to rotate. When the driving gear 20 rotates, it drives the gear ring 14 to rotate on the outer wall of the mounting platform 8. Then, the winding wheel 25 is driven to rotate by the small motor 24, so that the winding wheel 25 reels or unwinds. At the same time, the fastening rope 27 between each two groups of support blocks 28 is stretched straight, thereby pushing the movable block 29 to slide in the direction of the arc screw 2. The clamping cylinder 18 moves while driving the clamping plate 19 to clamp the arc screw 2, clamping the arc screw 2 in the groove of the clamping cylinder 18, wherein the clamping cylinder 18 and the placement platform 9 are flexibly connected. When the clamping cylinder 18 is subjected to a rotational thrust, the inner side wall of the arc groove 17 will resist and push the movable rod 16, so that the movable rod 16 drives the bevel push block 11 to slide inside the placement platform 9, and the bevel push block 11 slides while resisting the inclined block 10 to slide away from the placement platform 9, so that the clamping cylinder 18 is subjected to a rotational thrust and can rotate slightly on one side of the placement platform 9 together with the movable rod 16. At the same time, the arc screw 2 is fitted with the stop ring gauge 22 and the rotational thrust formed by the smooth twisting cannot make the bevel push block 11 resist and push the inclined block 10 to move;

[0040] Afterwards, the go / no go ring gauge 22 rotates and pushes toward the clamping tube 18, so that the notch of the go / no go ring gauge 22 contacts and twists the arc screw 2, thereby determining whether the middle diameter of the arc screw 2 meets the standard;

[0041] like Figure 3 As shown, one end of the fastening rope 27 is fixedly installed on one side of the connecting block 26, and then the fastening rope 27 is slidably sleeved on the outer side walls of the movable block 29 and the support block 28, and the other end of the fastening rope 27 is movably connected to the connecting block 26, and then wound around the winding wheel 25 above the connecting block 26. At the same time, when the winding wheel 25 is driven by the small motor 24 to start paying out the line, as the line that can be used by the fastening rope 27 gradually becomes longer, the elastic restoring force of the spring 2 31 will push the movable block 29 to move away from the clamping tube 18 until the clamping plate 19 is in contact with the inner side wall of the clamping tube 18, and the width of the slot after the clamping plate 19 and the clamping tube 18 are in contact is greater than the width of the head of the arc screw 2. At this time, the arc screw 2 can be smoothly pushed out of the device.

[0042] A sliding cylinder 1 36 is fixedly installed on the side of the check ring gauge 22 away from the clamping cylinder 18, and a sliding cylinder 2 41 is movably connected to the outer wall of the sliding cylinder 1 36, and a spring 37 is fixedly installed on the outer wall of the sliding cylinder 2 41, and a connecting ring 32 fixedly connected to the check ring gauge 22 is welded at one end of the spring 37. A bearing 34 is rotatably connected to the side of the sliding cylinder 2 41 away from the check ring gauge 22, and a connecting plate 35 is fixedly installed on one side of the bearing 34, and positioning plates 39 are fixedly installed at both ends of the connecting plate 35, and a support platform 40 is welded to the lower end of the positioning plate 39. A positioning cylinder 33 is sleeved on the outer side of the spring 37, and the positioning cylinder 33 is rotatably connected to the sliding cylinder 2 41, and two blocking leaves 38 are fixedly installed on the side of the positioning cylinder 33 close to the check ring gauge 22, and the blocking leaves 38 are embedded in the middle of the spring wire of the spring 37.

[0043] Specifically, Fig.10 As shown, the blocking leaf 38 is inserted between the spring wires of the spring three 37, blocking a part of the spring three 37 inside the positioning cylinder 33, while the part away from the positioning cylinder 33 is connected to the connecting ring 32, and a plurality of interlocking strips are installed on the outer surface of the sliding cylinder 1 36 at equal intervals, and the sliding cylinder 2 41 is connected to the sliding cylinder 1 36 through interlocking, and when the sliding cylinder 1 36 rotates, the sliding cylinder 2 41 is driven to rotate together, and at the same time, the spring three 37 is in a compressed state inside the positioning cylinder 33, and a part of the spring three 37 is blocked by the blocking leaf 38 in the positioning cylinder 33 The elastic restoring force of spring three 37 cannot be released inside, and one end of spring three 37 away from the connecting ring 32 is fixedly connected to the sliding cylinder two 41, and the blocking leaf 38 is obliquely inserted into the spring wire of spring three 37. When the sliding cylinder one 36 drives the spring three 37 to rotate, the spring three 37 also rotates on the blocking leaf 38. While rotating, a part of the compressed spring three 37 will be released by the blocking leaf 38 along the spiral trajectory, thereby pushing the stop ring gauge 22 through the connecting ring 32, so that the stop ring gauge 22 is pushed to collide with the arc screw 2.

[0044] A driving motor 42 is fixedly installed on the upper end of the support platform 40, and a belt 43 is sleeved on the output end of the driving motor 42. The other end of the belt 43 is sleeved on the gear rod 21. The upper end of the support platform 40 is connected to a discharge channel 401, and a marking platform 44 is fixedly installed on one side of the discharge channel 401. The marking platform 44 is rotatably connected to a marking rod 45 on the side close to the clamping cylinder 18. The upper end of the support platform 40 is fixedly connected to the positioning cylinder 33 to prevent the positioning cylinder 33 from rotating together with the spring three 37, thereby preventing the compressed part of the spring three 37 from being released through the blocking leaf 38. A storage box 46 is fixedly installed on the side of the guide box 1 away from the mounting platform 8, and a guide plate 50 is installed on the bottom of the inner cavity of the storage box 46. A plurality of arc screws are placed on the upper end of the guide plate 50 2, the guide plate 50 makes the arc screw 2 in a horizontal state during the sliding process, and will not be stuck due to too many arc screws 2 inside the material storage box 46. A linear electric cylinder 47 is fixedly installed on one side of the material guide box 1, and a push rod 48 movably connected to the material storage box 46 is fixedly installed on the output end of the linear electric cylinder 47. An insulating block 49 is installed on the side of the push rod 48 close to the material guide box 1. A cylinder 51 is fixedly installed on one side of the material guide box 1, and an electromagnetic suction rod 52 is fixedly installed on the output end of the cylinder 51. The electromagnetic suction rod 52 is movably connected to the material guide box 1, and a waste box 53 is installed on the side of the material guide box 1 away from the material storage box 46, wherein the linear electric cylinder 47 can be used to receive the electrical signal of the eddy current flaw detector to control the push rod 48 to apply thrust to the arc screw 2.

[0045] Specifically, the material guide box 1, the electric baffle 6 and the insulating block 49 are all made of insulating materials. The arc screw 2 is pressed against each other between the electromagnetic induction block 3 and the electromagnetic induction sheet 5 for eddy current flaw detection. When there are defects or foreign matter on the surface of the arc screw 2, the eddy current will be affected, thereby changing the magnetic field distribution. This change can be detected and converted into an electrical signal, and then the conductor is non-destructively tested. When the surface of the arc screw 2 is detected to be damaged, the linear electric cylinder 47 drives the push rod 48 to further apply a thrust to the arc screw 2, so that the arc screw 2 is pushed toward the direction of the electromagnetic induction sheet 5, and the electromagnetic induction sheet 5 is lifted by the rotation of the torsion spring shaft 4, thereby directly pushing out the damaged parts.

[0046] Furthermore, when the gear ring 14 is resisted by the rod 122 and stops, the gear rod 21 will also stop rotating, and the drive motor 42 will shut down without losing the internal structure. At this time, the spring 13 will push the inclined block 10 to return to one side of the bevel push block 11, and push the bevel push block 11 in the opposite direction through the inclined block 10 to make the clamping cylinder 18 rotate in the opposite direction, thereby driving the arc screw 2 to rotate against the stop ring gauge 22 to prevent the two from being too tight. The output end of the belt 43 and the end of the gear rod 21 close to the positioning cylinder 33 are both equipped with groove wheels, and the groove wheels are connected by the belt 43. The gear rod 21 is driven to rotate by starting the drive motor 42. At the same time, when the arc screw 2 is detected by the stop ring gauge 22 that the middle diameter of the arc screw 2 does not meet the standard, the marking rod 45 will rotate and mark the side of the arc screw 2;

[0047] The material guide box 1 and the material storage box 46 are both arranged at an angle. The linear electric cylinder 47 is extended and retracted to drive the push rod 48 to move, so that the push rod 48 can be extended and retracted and slide inside the material storage box 46 and the material guide box 1. Every time the push rod 48 moves, it drives the insulating block 49 to push the arc screw 2 into the material guide box 1 in sequence, and uses the electromagnetic induction block 3 and the electromagnetic induction sheet 5 to detect whether the material and surface of the arc screw 2 are damaged or broken. At the same time, the insulating block 49 is checked to improve the accuracy of the detection. If there is a problem, the push rod 48 is further pushed to push the electromagnetic induction sheet 5 open so that the arc screw 2 falls into the waste box 53. If there is no problem in the inspection, the electric baffle 6 is rotated to make the arc screw 2 slide to the bottom of the inner cavity of the material guide box 1. After the electromagnetic suction rod 52 is energized, the arc screw 2 is adsorbed and aligned with the opening of the placement table 9. The cylinder 51 is extended and retracted to push the arc screw 2 into the clamping tube 18 for clamping, so as to further detect the product and test whether the middle diameter of the arc screw 2 meets the standard.

[0048] The working principle and use process of the present invention are as follows: the worker first puts the arc screw 2 straight into the storage box 46, and the arc screw 2 rolls down to the bottom of the inner cavity in the storage box 46 in turn, and then the linear electric cylinder 47 drives the push rod 48 to do piston movement, pushing the arc screw 2 inside the storage box 46 into the cavity of the guide box 1, as shown in FIG. Fig.11As shown, at this time, the electric baffle 6 is set horizontally, and the pushed out arc screw 2 will be placed on the upper end of the electric baffle 6. At the same time, the side of the arc screw 2 will contact the electromagnetic induction block 3, and the end of the arc screw 2 away from the push rod 48 will contact the electromagnetic induction sheet 5. At this time, it is possible to judge whether the material or surface of the arc screw 2 is damaged by electromagnetic induction. If damaged, the push rod 48 will further push the arc screw 2. The electromagnetic induction sheet 5 that initially contacts the arc screw 2 will be pushed away by the arc screw 2. The electromagnetic induction sheet 5 is lifted up by the rotation of the torsion spring shaft 4. Finally, the arc screw 2 is pushed out of the cavity of the material guide box 1 by the push rod 48 and falls into the waste box 53. At the same time, the torsion spring shaft 4 resets the electromagnetic induction sheet 5 to fit the side surface of the material guide box 1 through the elastic restoring force.

[0049] If the electromagnetic induction block 3 and the electromagnetic induction sheet 5 detect that the material and surface of the arc screw 2 are not damaged, the electric baffle 6 starts to rotate into the movable bin 7. As the electric baffle 6 rotates, the arc screw 2 will roll down the slope of the electric baffle 6 to the lower part of the inner cavity of the guide box 1, and align with the port of the electromagnetic suction rod 52 and the slot of the mounting platform 8. Then, the electromagnetic suction rod 52 is energized to absorb the non-threaded end of the arc screw 2, so that the arc screw 2 is in a horizontal state, and then the cylinder 51 is used to push the arc screw 2 toward the mounting platform 9. When the arc screw 2 enters the groove of the placement table 9 and is then pushed toward the direction of the clamping cylinder 18, the arc screw 2 will be blocked by the side of the clamping plate 19 at this time, and the winding wheel 25 is driven to rotate by starting the small motor 24, so that the winding wheel 25 is wound up, and the fastening rope 27 is wound around the winding wheel 25, which causes the fastening rope 27 in contact with the movable block 29 to become shorter, thereby tightening the movable block 29. When the movable block 29 is tightened, it will push the clamping plate 19 to move in the direction of the arc screw 2, so that the arc screw 2 is clamped on the clamping plate 19;

[0050] Then, the driving motor 42 is started to drive the gear rod 21 to rotate through the belt 43. The rotation of the gear rod 21 drives the check ring 22 to rotate. As the check ring 22 rotates, the sliding cylinder 1 36, the spring 37 and the sliding cylinder 2 41 are driven to rotate in the cavity of the positioning cylinder 33. As the check ring 22 continues to rotate, the spring 37 blocked by the blocking leaf 38 will be released, thereby pushing the check ring 22 to move in the direction of the clamping cylinder 18. The sliding cylinder 1 36 is also drawn out from the inside of the sliding cylinder 2 41. As the check ring 22 is pushed by the spring 37, the notch of the check ring 22 will have a threaded connection with the arc screw 2. The spring 37 pushes against one end of the groove so that when the stop ring gauge 22 and the arc screw 2 cannot be threaded together, if the stop ring gauge 22 is pushed forward, the force applied to the arc screw 2 will be transferred to the spring 37, so that the spring 37 coming out of the positioning tube 33 starts to shrink and store elastic potential energy, so as to avoid excessive resistance of the stop ring gauge 22 to the arc screw 2, thereby causing damage to the stop ring gauge 22. When the stop ring gauge 22 and the arc screw 2 cannot be threaded together, the gear rod 21 will drive the stop ring gauge 22 to rotate in the opposite direction, so as to retract the spring 37 into the interior of the positioning tube 33 through the barrier leaf 38;

[0051] If the stop ring gauge 22 and the arc screw 2 suddenly get stuck during the threaded engagement, the stop ring gauge 22 and the arc screw 2 will rotate together. At this time, through the friction between the clamping plate 19 and the arc screw 2, the clamping tube 18 will also rotate along with the arc screw 2. The rotation of the clamping tube 18 can buffer the rotation of the stop ring gauge 22 and the arc screw 2 to prevent further damage to the connection. When the clamping tube 18 rotates, the movable rod 16 on the other side will be resisted by the side of the arc groove 17, thereby driving the bevel push block 11 to move in the inner arc of the placement table 9 through the movable rod 16. When the movable rod 16 drives the bevel push block 11 to move, it will push the bevel block 10 to move in the direction of the mounting table 8. When the bevel block 10 moves, the positioning rod 12 will move toward the gear ring 14 The gear ring 14 moves in the same direction, at this time, the gear ring 14 is driven to rotate by the driving gear 20, and when the positioning rod 12 moves and drives the resistance rod 122 to be inserted into the cavity of the engaging groove 15, the gear ring 14 stops rotating, and the gear ring 14 stops driving the driving gear 20 and the gear rod 21 to stop, and the driving motor 42 stops operating at the same time, so that the go / no go ring gauge 22 is no longer driven by the gear rod 21 to continue to rotate, thereby avoiding further damage to the connection between the arc screw 2 and the go / no go ring gauge 22, and then the elastic restoring force of the spring 13 makes the bevel block 10 be pushed back to one side of the bevel push block 11, and when the bevel block 11 moves, it resists and pushes the bevel push block 10 to slide, thereby making the clamping cylinder 18 rotate to its original position, and rotating the arc screw 2 clamped inside, to prevent the arc screw 2 and the go / no go ring gauge 22 from getting stuck.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A circular arc screw thread detection device, comprising a material guide box (1), the inner side wall of the material guide box (1) is provided with a movable bin (7), the cavity of the movable bin (7) is rotatably connected with an electric baffle (6), an arc screw (2) is placed on the upper end of the electric baffle (6), the inner side wall of the material guide box (1) is installed with an electromagnetic induction block (3) that contacts the circular arc screw (2), the outer side wall of the material guide box (1) is movably connected with an electromagnetic induction sheet (5) that contacts the circular arc screw (2), and a torsion spring shaft (4) connected to the outer side wall of the material guide box (1) is fixedly installed on one side of the electromagnetic induction sheet (5), characterized in that: One side of the material guide box (1) is fixedly connected to a mounting platform (8), an inner side wall of the mounting platform (8) is welded with a placement platform (9), and two inclined blocks (10) are slidably connected to the upper and lower ends of the placement platform (9), and the outer side walls of the two inclined blocks (10) on the same side are welded with positioning rods (12), and one end of the positioning rod (12) away from the inclined block (10) is inserted into the inside of the mounting platform (8), and one end of the positioning rod (12) is also inserted into a resistance rod (122), and the resistance rod (122) is located inside the mounting platform (8), and a resistance spring (121) is provided between the resistance rod (122) and the inner cavity bottom of the positioning rod (12), so that Two bevel push blocks (11) are slidably connected inside the upper and lower ends of the placement platform (9), and the bevel push block (11) on the same side contacts the bevel block (10). The outer wall of the installation platform (8) is rotatably connected with a gear ring (14), and the inner wall of the gear ring (14) is provided with a plurality of engaging grooves (15) at equal intervals, and the engaging grooves (15) can be plugged into the contact rod (122). A movable rod (16) is fixedly installed on one side of the bevel push block (11), and the end of the movable rod (16) away from the bevel push block (11) is movably connected with a clamping tube (18), and the inner wall of the clamping tube (18) is provided with a plurality of clamping plates (19); One side of the gear ring 1 (14) is meshed with a driving gear (20), one end of the driving gear (20) is fixedly connected to a gear rod (21), one side of the gear rod (21) is meshed with a gear ring 2 (23), and the inner side wall of the gear ring 2 (23) is fixedly mounted with a stop ring gauge (22).

2. The arc screw thread detection device according to claim 1, characterized in that: The positioning rod (12) is sleeved with a spring (13) that contacts the mounting platform (8); a circular arc groove (17) is provided on one side of the clamping tube (18) and is slidably connected to the movable rod (16); a movable block (29) that is slidably connected to the clamping tube (18) is fixedly installed on one side of the clamping plate (19); contact plates (30) are fixedly installed on both sides of the movable block (29); and a spring (31) that contacts the clamping tube (18) is welded on one side of the contact plate (30).

3. The arc screw thread detection device according to claim 2, characterized in that: A cylinder shell (181) is fixedly mounted on the outer wall of the clamping cylinder (18); a small motor (24) is fixedly mounted on the side of the cylinder shell (181) away from the mounting platform (8); an output end of the small motor (24) extends into the cavity of the cylinder shell (181) and is fixedly mounted with a winding wheel (25); a tightening rope (27) is wound around the outer wall of the winding wheel (25); a connecting block (26) movably connected to the tightening rope (27) is mounted on the upper end of the clamping cylinder (18); and a plurality of supporting blocks (28) slidably connected to the tightening rope (27) are fixedly mounted on the outer wall of the clamping cylinder (18).

4. The arc screw thread detection device according to claim 1, characterized in that: A sliding cylinder 1 (36) is fixedly installed on the side of the go / no go ring gauge (22) away from the clamping cylinder (18); a sliding cylinder 2 (41) is movably connected to the outer wall of the sliding cylinder 1 (36); a spring 3 (37) is fixedly installed on the outer wall of the sliding cylinder 2 (41); and a connecting ring (32) fixedly connected to the go / no go ring gauge (22) is welded to one end of the spring 3 (37).

5. The arc screw thread detection device according to claim 4, characterized in that: The sliding cylinder 2 (41) is rotatably connected to the side away from the stop ring gauge (22), and a connecting plate (35) is fixedly installed on one side of the bearing (34). Positioning plates (39) are fixedly installed at both ends of the connecting plate (35). A support platform (40) is welded to the lower end of the positioning plate (39). A positioning cylinder (33) is sleeved on the outer side of the spring 3 (37). The positioning cylinder (33) is rotatably connected to the sliding cylinder 2 (41). Two barrier leaves (38) are fixedly installed on the side of the positioning cylinder (33) close to the stop ring gauge (22), and the barrier leaves (38) are embedded in the middle of the spring wire of the spring 3 (37).

6. The arc screw thread detection device according to claim 5, characterized in that: A driving motor (42) is fixedly mounted on the upper end of the support platform (40), a belt (43) is sleeved on the output end of the driving motor (42), the other end of the belt (43) is sleeved on the gear rod (21), the upper end of the support platform (40) is connected to a discharge channel (401), a marking platform (44) is fixedly mounted on one side of the discharge channel (401), a marking platform (44) is rotatably connected to a marking rod (45) on the side of the marking platform (44) close to the clamping cylinder (18), and the upper end of the support platform (40) is fixedly connected to the positioning cylinder (33).

7. The arc screw thread detection device according to claim 1, characterized in that: A material storage box (46) is fixedly mounted on the side of the material guide box (1) away from the mounting platform (8); a guide plate (50) is mounted on the bottom of the inner cavity of the material storage box (46); a plurality of arc screws (2) are placed on the upper end of the guide plate (50); a linear electric cylinder (47) is fixedly mounted on one side of the material guide box (1); a push rod (48) movably connected to the material storage box (46) is fixedly mounted on the output end of the linear electric cylinder (47); an insulating block (49) is mounted on the side of the push rod (48) close to the material guide box (1).

8. The arc screw thread detection device according to claim 1, characterized in that: A cylinder (51) is fixedly mounted on one side of the material guide box (1), an electromagnetic suction rod (52) is fixedly mounted on the output end of the cylinder (51), the electromagnetic suction rod (52) is movably connected to the material guide box (1), and a waste box (53) is mounted on the side of the material guide box (1) away from the material storage box (46).

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