A cable crimp sleeve measuring device

Abstract

This invention discloses a cable crimping sleeve measuring device, relating to the field of testing equipment technology. It includes a chain conveyor comprising multiple conveyor chain plates and a frame plate, and further includes: a storage assembly with an open bottom for storing crimping sleeves, the storage assembly being fixedly installed at one end of the chain conveyor; a picking rod transmission mechanism including a transmission shaft for driving the picking rod to rotate; a point-to-line detection switching assembly including a detachable intermittent lifting rod; and an ultrasonic thickness measuring mechanism including a liftable ultrasonic dual-crystal straight probe. The ultrasonic dual-crystal straight probe, through the detachment and detachment of the intermittent lifting rod, enables linear spiral ultrasonic thickness detection or point spiral ultrasonic thickness detection, solving the problems of low efficiency, missed detection, and inability to meet linear detection requirements in traditional ultrasonic methods for crimping sleeve thickness detection.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, and in particular to a cable crimping sleeve measuring device. Background Technology

[0002] A wire crimp sleeve is an electrical accessory used to connect electrical wires, typically made of copper tubing. Its main function is to securely connect two wires together by crimping, ensuring smooth current conduction and reliable connection.

[0003] During the production of crimp sleeves, uneven material distribution may occur. The thickness of the crimp sleeve directly affects its strength and durability. Uneven thickness can lead to uneven current distribution, affecting electrical performance. If the thickness is insufficient in certain areas, the connection may be weak, increasing the risk of wires detaching or breaking during use. This can cause current interruption, affecting the normal operation of equipment. Multi-point ultrasonic thickness testing can ensure non-destructive testing of the sleeve thickness at different locations, thereby guaranteeing the reliability of the connection.

[0004] However, the current method of ultrasonic testing for the thickness of crimped sleeves mainly relies on manual operation. One hand holds the crimped sleeve, and the other hand holds the ultrasonic dual-crystal straight probe against the outer wall of the crimped sleeve. Then, multiple points are randomly selected on the outer wall of the crimped sleeve for ultrasonic thickness testing. This testing method has the following defects in actual testing: (1) Manual testing is inefficient and costly; (2) When randomly selecting points, the tester may not perform the required number of points, resulting in fewer test points and thus reducing the true test data of the crimped sleeve; (3) When applied to high-precision electrical equipment, the thickness uniformity of the crimped sleeve is required to be high, and the current point testing method cannot meet the requirements. Summary of the Invention

[0005] The purpose of this invention is to provide a cable crimp sleeve measuring device to solve the problems of low efficiency, missed detection, and inability to meet linear detection requirements in traditional crimp sleeve thickness detection methods.

[0006] To achieve the above objectives, the present invention employs the following technology: a cable crimping sleeve measuring device.

[0007] The system includes a chain conveyor, which comprises multiple conveyor chain plates and a frame plate, and further includes:

[0008] A storage assembly with an open bottom for storing crimped sleeves is fixedly installed at one end of the chain conveyor.

[0009] A material-retrieving mechanism mounted on a conveyor chain plate includes a rotatable material-retrieving rod for inserting a crimped sleeve into a storage assembly, the storage assembly including a pressure plate for inserting the crimped sleeve into the material-retrieving rod;

[0010] A material-retrieving rod transmission mechanism, the material-retrieving rod transmission mechanism including a transmission shaft for driving the material-retrieving rod to rotate;

[0011] A dot-line detection switching component, the dot-line detection switching component including a detachable intermittent lifting rod;

[0012] The ultrasonic thickness measurement mechanism includes a liftable ultrasonic dual-crystal straight probe. The ultrasonic dual-crystal straight probe can perform linear spiral ultrasonic thickness detection or point spiral ultrasonic thickness detection by intermittently lifting the rod.

[0013] A further description of a cable crimping sleeve measuring device as described above:

[0014] The material storage assembly further includes: a hopper, a guide pipe is connected through the bottom of the hopper, a discharge port is opened at the lower end of the guide pipe, and an open opening is also opened at the lower end of the guide pipe. The pressing sleeve slides axially through the discharge port to discharge material. The pressing plate is hinged to the upper edge of the discharge port by a hinge. A positioning shaft is fixed on the side of the guide pipe near the discharge port. A torsion spring is fixed on the positioning shaft, and the torsion spring foot presses on the pressing plate.

[0015] A further description of a cable crimping sleeve measuring device as described above:

[0016] The conveyor chain plate is fixed with a bearing seat, and the material picking rod is rotatably connected to the bearing seat through the bearing. A pad is fixed on one side of the bearing seat.

[0017] A further description of a cable crimping sleeve measuring device as described above:

[0018] The material-receiving rod includes a thin rod smaller than the outer diameter of the crimping sleeve. The material-receiving rod also includes a support column. Both ends of the thin rod are coaxially fixed with support columns, and a conical head is coaxially fixed at the front end of the support column.

[0019] A further description of a cable crimping sleeve measuring device as described above:

[0020] The pressure plate has a U-shaped opening facing downwards, and the internal width of the U-shaped opening is adapted to the support column.

[0021] A further description of a cable crimping sleeve measuring device as described above:

[0022] The point-line detection switching component also includes multiple support poles, with horizontal bars vertically fixed between the support poles on the same side. The horizontal bars are symmetrically provided with mounting holes that are compatible with bolts. One end of the horizontal bar is fixed with a first guide plate, and the other end of the horizontal bar is fixed with a lifting ramp. Multiple grooves are provided on one side of the intermittent lifting bar.

[0023] The ultrasonic thickness measuring mechanism further includes: a crossbar, with long screws fixed at both ends of the crossbar, and slope rods symmetrically fixed on the side of the crossbar near the long screws, with a limit ring fixed above the guide seat on the long screws.

[0024] A further description of a cable crimping sleeve measuring device as described above:

[0025] An adjusting nut is threaded onto the long screw, and a spring is fitted onto the long screw, with the spring positioned between the adjusting nut and the guide seat.

[0026] A further description of a cable crimping sleeve measuring device as described above:

[0027] One end of the drive shaft is coaxially fixed with a drive bevel gear, and the other end is coaxially fixed with a gear. The material pick-up rod is coaxially fixed with a driven bevel gear that meshes with the drive bevel gear. The inner side of the frame plate is fixed with a toothed plate by multiple sets of fixing brackets. The toothed plate is adapted to mesh with the gear. A chain plate support plate is fixed on the fixing bracket.

[0028] A further description of a cable crimping sleeve measuring device as described above:

[0029] The inner side of the frame plate is also fixedly connected to a limiting strip plate by a fixing frame. The limiting strip plate is parallel to the toothed plate and forms a channel for gear travel. The limiting strip plate and the toothed plate are both fixed with a third guide plate that tilts outward. The end of the chain plate support plate near the third guide plate is fixed with a second guide plate that tilts downward.

[0030] In summary, due to the adoption of the above-mentioned technology in the cable crimping sleeve measuring device, the beneficial effects of this invention are:

[0031] 1. Using an installable intermittent lifting rod, during routine point-type thickness measurement of the crimping sleeve, the ultrasonic dual-crystal straight probe intermittently contacts the crimping sleeve via the intermittent lifting rod. The conveyor chain drives the material pick-up rod, the crimping sleeve inserted on the material pick-up rod, and the intermittent lifting rod to move and rotate. When the ultrasonic dual-crystal straight probe descends, the detection head of the ultrasonic dual-crystal straight probe rests against the crimping sleeve, allowing for thickness measurement of the crimping sleeve. The spiral rotation of the crimping sleeve completes the point-type spiral thickness measurement of the crimping sleeve, thus avoiding the problem of missed points that may occur during manual point measurement.

[0032] 2. After disassembling the intermittent lifting rod, the point-to-line detection switching component, with the ultrasonic dual-crystal straight probe pressed against the crimping sleeve, can perform linear spiral thickness detection on the moving and rotating crimping sleeve, thus enabling a more comprehensive measurement of the crimping sleeve thickness. Furthermore, by adjusting the conveyor chain speed, the slower the conveyor chain travels and the smaller the pitch, the more comprehensive the measurement data will be.

[0033] 3. The crimping sleeve is inserted into the picking rod by the pressure plate. When fully inserted, the pressure plate is lifted and flipped by the crimping sleeve, thus not affecting the normal movement of the picking rod. At the same time, it ensures that the crimping sleeve can be fully inserted into the picking rod. After the bottom crimping sleeve is picked up, the crimping sleeve in the guide tube slides down under the action of gravity, completing the automatic material replenishment, thereby improving measurement efficiency and reducing labor costs.

[0034] 4. The insertion part is supported by two support columns, and a cavity is formed between the insertion part and the thin rod. Therefore, when the ultrasonic dual crystal straight probe is used to detect the thickness of the crimped sleeve, the propagation path of the ultrasonic wave can be avoided from being interfered with, and reflection, refraction or scattering can be avoided when detecting the crimped part, thereby improving the strength and clarity of the detection signal of the crimped part of the crimped sleeve. Attached Figure Description

[0035] Figure 1 A schematic diagram of the overall point-type spiral thickness detection state provided according to an embodiment of the present invention is shown;

[0036] Figure 2 The present invention provides an embodiment of the invention. Figure 1 Left-view structural diagram;

[0037] Figure 3 The present invention provides an embodiment of the invention. Figure 2 Enlarged structural diagram at point A in the middle;

[0038] Figure 4 A schematic diagram of the intermittent lifting rod, pad, and material picking rod transmission mechanism provided according to an embodiment of the present invention is shown.

[0039] Figure 5 The present invention provides an embodiment of the invention. Figure 4 Schematic diagram of the structure during an explosion;

[0040] Figure 6 A front view schematic diagram of the crossbar and pad provided according to an embodiment of the present invention is shown;

[0041] Figure 7 A front view schematic diagram of the intermittent lifting rod structure provided according to an embodiment of the present invention is shown;

[0042] Figure 8A schematic diagram of a support structure for a pressure plate provided according to an embodiment of the present invention is shown;

[0043] Figure 9 The present invention provides an embodiment of the invention. Figure 8 Enlarged structural diagram at point B;

[0044] Figure 10 The present invention provides an embodiment of the invention. Figure 8 Schematic diagram of the partial front view structure;

[0045] Figure 11 A schematic diagram of an ultrasonic dual-crystal straight probe and a slope rod structure provided according to an embodiment of the present invention is shown;

[0046] Figure 12 The present invention provides an embodiment of the invention. Figure 11 Enlarged structural diagram at point C;

[0047] Figure 13 A schematic diagram of the mounting structure of the fixing frame, toothed plate, and limiting plate provided according to an embodiment of the present invention is shown;

[0048] Figure 14 A schematic diagram of the material picking rod transmission mechanism and the material picking rod transmission structure provided according to an embodiment of the present invention is shown;

[0049] Figure 15 The present invention provides an embodiment of the invention. Figure 14 Left-view structural diagram;

[0050] Figure 16 A schematic diagram of a partial structure of an ultrasonic dual-crystal straight probe for linear spiral detection according to an embodiment of the present invention is shown.

[0051] Figure 17 A schematic diagram of the detection status of the crimped sleeve tubing spiral provided according to an embodiment of the present invention is shown;

[0052] Figure 18 A schematic diagram of the point-type spiral detection state of the crimped sleeve provided according to an embodiment of the present invention is shown.

[0053] Legend:

[0054] 10. Chain conveyor; 11. Conveyor chain; 12. Frame plate; 121. Guide seat; 13. Sprocket shaft; 14. Drive motor;

[0055] 20. Material handling mechanism; 21. Material handling rod; 22. Bearing housing; 23. Pad plate; 24. Support column; 241. Conical head;

[0056] 30. Dot-line detection switching component; 31. Support pole; 32. Horizontal bar; 321. Mounting hole; 33. First guide plate; 34. Lifting ramp; 35. Intermittent lifting rod; 351. Slope; 36. Bolt; 37. Wing nut;

[0057] 40. Material picking rod transmission mechanism; 41. Drive shaft; 42. Driving bevel gear; 43. Driven bevel gear; 44. Gear; 45. Fixing frame; 46. Chain plate support plate; 461. Second guide plate; 47. Gear plate; 471. Third guide plate; 48. Limiting strip; 49. Gear housing;

[0058] 50. Ultrasonic thickness measuring mechanism; 51. Ultrasonic dual-crystal straight probe; 52. Display; 53. Crossbar; 54. Slope bar; 55. Long screw; 551. Limiting ring; 56. Adjusting nut; 57. Spring;

[0059] 60. Material storage assembly; 61. Hopper; 62. Guide pipe; 621. Discharge port; 622. Opening; 63. Pressure plate; 631. U-shaped opening; 64. Positioning shaft; 65. Torsion spring; 66. Support frame;

[0060] 70. Crimped sleeve. Detailed Implementation

[0061] The following will describe, with reference to the accompanying drawings of the embodiments of the present invention, a cable crimping sleeve measuring device of the present invention clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0062] like Figure 1 - Figure 18 As shown, the present invention provides a cable crimping sleeve measuring device, including a chain conveyor 10, which includes multiple conveyor chain plates 11 and a frame plate 12. The chain conveyor 10 also includes a drive motor 14 and a sprocket shaft 13 that is connected to the drive motor 14 for transmission. The drive motor 14 is a servo motor for precise control of the conveyor chain plates 11, which ensures the stability and synchronization of the material during the conveying process. It also includes a storage component 60 with an open bottom for storing crimping sleeves 70. The storage component 60 is fixedly installed at the conveying front end of the chain conveyor 10 and its bottom is suspended. The distance between the storage component 60 and the conveying front end of the chain conveyor 10 is greater than the length of the picking rod 21 to prevent the picking rod 21 from getting stuck on the outer wall of the storage component 60 after it flips from the bottom to the top.

[0063] A material-picking mechanism 20 is installed on the conveyor chain plate 11. Multiple sets of material-picking mechanisms 20 are fixedly installed on the conveyor chain plate 11 at intervals. The cyclically rotating conveyor chain plate 11 drives the material-picking mechanism 20 to rotate accordingly, ultimately achieving cyclic material picking by the material-picking rod 21, thus realizing mechanized material picking. The material-picking mechanism 20 includes a rotatable material-picking rod 21 for inserting and retrieving the crimping sleeve 70 from the storage assembly 60. The material-picking rod 21 is coaxially arranged with the crimping sleeve 70 inside the storage assembly 60. When the material-picking rod 21 reaches the lowermost crimping sleeve... One end of the sleeve 70 is inserted. The storage assembly 60 includes a pressure plate 63 for inserting the crimping sleeve 70 into the picking rod 21. The upper edge of the pressure plate 63 is hinged to the bottom opening of the storage assembly 60 and away from the conveying front end of the chain conveyor 10. The crimping sleeve 70 is inserted into the picking rod 21 by the pressure plate 63. When it is fully inserted, the pressure plate 63 is pushed upward and flipped, so as not to affect the normal movement of the picking rod 21. At the same time, it also ensures that the crimping sleeve 70 can be fully inserted into the picking rod 21 to realize automatic picking.

[0064] The material picking rod transmission mechanism 40 includes a transmission shaft 41 that is perpendicular to and drives the material picking rod 21. The transmission shaft 41 is rotatably mounted on the conveyor chain plate 11 via bearings and is mounted on the same conveyor chain plate 11 as the material picking mechanism 20, thereby ensuring the stability of the transmission of the transmission shaft 41. The transmission shaft 41 is used to drive the material picking rod 21 to rotate. Finally, the material picking rod 21 can also rotate during the process of moving.

[0065] Two sets of point-line detection switching components 30 are provided and symmetrically fixed on both sides of the material handling mechanism 20 to improve the stability of the intermittent lifting rod 35 and prevent it from tilting to one side. A channel is formed between the two sets of point-line detection switching components 30. The distance between this channel is greater than the bottom lateral dimension of the material storage component 60, thus ensuring the normal movement of the point-line detection switching components 30. The point-line detection switching components 30 include detachable intermittent lifting rods 35.

[0066] The ultrasonic thickness measurement mechanism 50 includes: a liftable ultrasonic dual-crystal straight probe 51. The ultrasonic dual-crystal straight probe 51 is an electromagnetic ultrasonic dual-crystal straight probe. Therefore, it is not necessary to apply coupling agent to the crimping sleeve 70 during ultrasonic thickness measurement. The crimping sleeve 70 inserted on the material picking rod 21 is placed directly below the ultrasonic dual-crystal straight probe 51. The ultrasonic dual-crystal straight probe 51 can achieve linear spiral ultrasonic thickness detection or point spiral ultrasonic thickness detection by disassembling and assembling the intermittent lifting rod 35.

[0067] When the intermittent lifting rod 35 is assembled and passes through the ultrasonic thickness measuring mechanism 50, the ultrasonic dual-crystal straight probe 51 can be reciprocated by the intermittent lifting rod 35. During the upward movement, the ultrasonic dual-crystal straight probe 51 is raised and does not contact the crimping sleeve 70. The chain conveyor 10 drives the conveyor chain 11 to move forward. At this time, the conveyor chain 11 drives the picking rod 21, the crimping sleeve 70 inserted on the picking rod 21, and the intermittent lifting rod 35 to move and rotate. When the ultrasonic dual-crystal straight probe 51 descends, the detection head of the ultrasonic dual-crystal straight probe 51 presses against the crimping sleeve 70, thus performing thickness detection on the crimping sleeve 70. Furthermore, the intermittent spiral rotation of the crimping sleeve 70 completes the point-type spiral thickness detection of the crimping sleeve 70 (e.g., ...). Figure 18 As shown in the figure, and during point detection, it can reduce the wear between the ultrasonic dual crystal straight probe 51 and the crimping sleeve 70, and improve the service life of the ultrasonic dual crystal straight probe 51.

[0068] After the intermittent lifting rod 35 is disassembled, the drive motor 14 of the chain conveyor 10 drives the conveyor chain 11 at a constant speed. When the conveyor chain 11 with the crimping sleeve 70 inserted moves to below the ultrasonic dual-crystal straight probe 51, the ultrasonic dual-crystal straight probe 51, which is pressed against the crimping sleeve 70, can perform linear spiral thickness detection on the moving and rotating crimping sleeve 70. Furthermore, by adjusting the travel speed of the conveyor chain 11, the spiral spacing of the linear spiral detection can be controlled, thereby improving the detection of the crimping sleeve 70 (e.g., Figure 17 As shown in the figure, it enables point or line spiral ultrasonic thickness detection of the crimped sleeve 70 according to the usage requirements, avoiding the number of detection points being less than the required number when conducting point detection, thus improving detection efficiency.

[0069] During the testing process, the crimping sleeve 70 and the picking rod 21 are in surface contact, while the crimping sleeve 70 and the ultrasonic dual-crystal straight probe 51 are in point contact. The picking rod 21 and the probe part of the ultrasonic dual-crystal straight probe 51 are made of the same material. Therefore, the friction between the crimping sleeve 70 and the picking rod 21 is greater than the friction between the crimping sleeve 70 and the ultrasonic dual-crystal straight probe 51. At the same time, the surface of the picking rod 21 is frosted to increase the friction coefficient with the inner wall of the crimping sleeve 70. Ultimately, this can avoid the problem that the crimping sleeve 70 cannot follow the rotation of the picking rod 21 during online spiral testing or point spiral testing.

[0070] like Figure 4 , Figure 5 , Figure 8 , Figure 9 , Figure 10 As shown, the storage assembly 60 also includes: a hopper 61, with a guide pipe 62 connected through the bottom of the hopper 61. The hopper 61 is used to store the crimping sleeves 70 placed in the same direction, and the crimping sleeves 70 are stacked vertically in parallel with their axes through the guide pipe 62.

[0071] The lower end of the guide tube 62 has a discharge port 621 facing the direction of travel of the conveyor chain plate 11, and the opening of the crimping sleeve 70 faces the discharge port 621. The crimping sleeve 70 slides axially through the discharge port 621 to discharge material. Both sides of the lower end of the guide tube 62 have open openings 622. The open openings 622 are smaller than the outer diameter of the crimping sleeve 70, but larger than the outer dimensions of the material picking part of the picking mechanism 20, so that the bearing seat 22 can slide along the open openings. The channel formed by 622 moves, and the end of the guide tube 62 near the opening 622 is an arc-shaped structure and is coaxial with the bottom crimping sleeve 70. The setting of the opening 622 can prevent the crimping sleeve 70 from falling from the bottom, and the inner arc-shaped structure can position the bottom crimping sleeve 70, so that the bottom crimping sleeve 70 is coaxial with the material picking rod 21 after the bottom is positioned. The third is to ensure the normal movement of the bearing seat 22.

[0072] To ensure the press-fit sleeve 70 can be fully installed on the take-up rod 21 via the pressure plate 63, the pressure plate 63 is hinged to the upper edge of the discharge port 621, and the positioning shaft 64 is fixed to the side of the guide tube 62 near the discharge port 621 (e.g., Figure 1 (On the side away from the drive motor 14 shown), the torsion spring 65 is sleeved on the positioning shaft 64 and both ends are fixed on the positioning shaft 64, and the pressure foot presses on the pressure plate 63;

[0073] Under normal conditions, the pressure plate 63 is attached to the side wall of the guide tube 62. Simultaneously, the rebound force of the pressure foot presses the pressure plate 63 firmly against the side wall of the guide tube 62. When the take-up rod 21 takes up material, the pressure plate 63, under the action of the rebound force, acts to block the end of the crimping sleeve 70. And when the crimping sleeve 70 is fully inserted into the take-up rod 21, the thrust generated by the take-up rod 21 driving the crimping sleeve 70 forward causes the pressure plate 63 to flip upward (e.g., ...). Figure 10 As shown), when the crimping sleeve 70 moves away, the pressing plate 63 automatically resets under the rebound force of the torsion spring 65, and the next crimping sleeve 70 falls to replenish the material.

[0074] The hopper 61 and the guide pipe 62 are fixed to the frame plate 12 by the support frame 66, and the axis of the crimping sleeve 70 is parallel to the traveling direction of the conveyor chain plate 11. The hopper 61 and the guide pipe 62 are suspended in the air by the support frame 66 to avoid them from being blocked by the material picking mechanism 20 during the material picking process.

[0075] like Figure 4 , Figure 5 , Figure 6As shown, a bearing seat 22 is fixed on the conveyor chain plate 11. The material picking rod 21 is coaxially rotatably connected to the bearing seat 22 through the bearing. The material picking part above the bearing seat 22 is smaller than the opening size of the open port 622. The bearing seat 22 can move along the open port 622 during movement to prevent the bearing seat 22 from getting stuck on the guide tube 62. The pad plate 23 is fixedly installed on the end of the bearing seat 22 near the material picking rod 21 to support the crimping sleeve 70.

[0076] When the pad 23 flips over to the top of the chain conveyor 10, the lower surface of the pad 23 is in contact with the upper surface of the conveyor chain 11. The distance between the pad 23 and the picking rod 21 is greater than the thickness of the crimping sleeve 70. When the crimping sleeve 70 is inserted into the picking rod 21, the upper surface of the pad 23 is close to but does not contact the outer wall of the crimping sleeve 70. When performing point or line spiral thickness measurement, the ultrasonic dual-crystal straight probe 51 will press down on the picking rod 21 and bend it downwards, which will cause the angle between the crimping sleeve 70 and the ultrasonic dual-crystal straight probe 51 to change. As the angle changes, the ultrasonic propagation path of the ultrasonic dual-crystal straight probe 51 also changes, thus affecting the measurement data. Therefore, when the ultrasonic dual-crystal straight probe 51 is pressed on the outer wall of the crimping sleeve 70, the support of the bottom pad 23 can prevent the picking rod 21 from being bent to a large extent by the ultrasonic dual-crystal straight probe 51, thereby improving the accuracy of the measurement data.

[0077] like Figure 5 , Figure 9 , Figure 16 As shown, the material taking rod 21 includes a thin rod with an outer diameter smaller than that of the crimping sleeve 70. The material taking rod 21 also includes a support column 24. Both ends of the thin rod are coaxially fixed with the support column 24, and the front end of the support column 24 is coaxially fixed with a tapered head 241.

[0078] When the crimp sleeve 70 crimps two cable segments together, there is a margin at both ends. Therefore, the current mainly passes through the crimping part of the crimp sleeve 70. Based on this characteristic, when detecting the thickness of the crimp sleeve 70, more attention is paid to measuring the thickness of the crimping part.

[0079] The support columns 24 are coaxially fixed at both ends of the thin rod, and the conical head 241 is coaxially fixed at the front section of the support column 24. This facilitates the insertion of the material pick-up rod 21. When one end of the crimping sleeve 70 abuts against the side wall of the bearing seat 22, the connection between the crimping sleeve 70 and the support column 24 is a margin, and the two support columns 24 are the insertion part. A cavity is formed between the crimping part and the thin rod. Therefore, when the ultrasonic dual-crystal straight probe 51 performs thickness detection on the crimping sleeve 70, it can avoid interference with the propagation path of the ultrasonic wave and avoid reflection, refraction or scattering when detecting the crimping part, thereby improving the strength and clarity of the detection signal of the crimping part of the crimping sleeve 70.

[0080] like Figure 9 As shown, the pressure plate 63 has a U-shaped opening 631 facing downwards, and the internal width of the U-shaped opening 631 is adapted to the support column 24.

[0081] After the conical head 241 is passed through the U-shaped opening 631, and the crimping sleeve 70 is pressed against the inner side of the pressure plate 63, the pressure plate 63 can normally install the crimping sleeve 70 onto the support column 24. When one end of the crimping sleeve 70 abuts against the bearing seat 22, both ends of the crimping sleeve 70 are coplanar with the two support columns 24, thus ensuring that the picking rod 21 can pick up the crimping sleeve 70, while ensuring that the support column 24 and the crimping sleeve 70 can make complete contact, avoiding the reduction of the friction coefficient due to partial insertion, and positioning the crimping sleeve 70.

[0082] like Figure 2 - Figure 7 , Figure 12 , Figure 13 As shown, the dot-line detection switching component 30 also includes multiple support poles 31.

[0083] Multiple crossbars 32 are fixedly installed on both sides of the material handling mechanism 20. The support uprights 31 are fixed to the side wall of the pad 23. Crossbars 32 are vertically fixed between the support uprights 31 on the same side. The two crossbars 32 are parallel to the axis of the crimping sleeve 70. The crossbars 32 are symmetrically provided with mounting holes 321 that are compatible with the bolts 36. A downwardly inclined first guide plate 33 is fixed at the end of the crossbar 32 near the ultrasonic dual crystal straight probe 51. The lower end of the first guide plate 33 is lower than the slope bar 54. When the crossbar 32 moves, the slope bar 54 can be lifted up along the slope through the first guide plate 33 to ensure the normal movement of the crossbar 32 and to lift the ultrasonic dual crystal straight probe 51.

[0084] The other end of the crossbar 32 is fixed with a lifting ramp 34. The end of the crossbar 32 close to the ultrasonic dual crystal straight probe 51 and the lifting ramp 34 can lift the ultrasonic dual crystal straight probe 51. When the ramp 54 slides along the first guide plate 33 and the lifting ramp 34, the ultrasonic dual crystal straight probe 51 is suspended in the two ends of the crimping sleeve 70. The remaining part does not participate in the crimping. Therefore, the uniformity of thickness has little impact on the cable connection. The detection of the remaining part can be ignored, thereby reducing the detection data and reducing the wear between the ultrasonic dual crystal straight probe 51 and the crimping sleeve 70 during online spiral detection, thus increasing the service life of the ultrasonic dual crystal straight probe 51.

[0085] The intermittent lifting rod 35 is symmetrically fixed with bolts 36. Multiple grooves 351 are provided on the side of the intermittent lifting rod 35 away from the bolts 36. By inserting the bolts 36 into the corresponding mounting holes 321 and connecting them with the threaded connection of the wing nut 37 to the bolts 36, the intermittent lifting rod 35 and the crossbar 32 can be disassembled and assembled.

[0086] The ultrasonic thickness measuring mechanism 50 also includes: a crossbar 53, with long screws 55 fixed at both ends of the crossbar 53, an ultrasonic dual-crystal straight probe 51 fixed below the crossbar 53 with the probe part positioned below, a slope bar 54 symmetrically fixed on the side of the crossbar 53 near the long screws 55, the slope bar 54 conforming to the slope of the groove 351, the long screws 55 slidingly inserted into the guide seat 121 on the side wall of the frame plate 12, the guide seat 121 guiding the long screws 55, and the ultrasonic dual-crystal straight probe 51 being adjusted up and down along the radial direction of the crimping sleeve 70, and a limit ring 551 fixed above the guide seat 121;

[0087] When the limiting ring 551 abuts against the guide seat 121, the lower end of the ultrasonic dual crystal straight probe 51 is placed within the radius of the crimping sleeve 70. At the same time, the lower edge of the slope rod 54 is placed above the low point of the inclined end of the first guide plate 33, so that the first guide plate 33 can lift the slope rod 54. When the slope rod 54 slides along the intermittent lifting rod 35 and falls into the slope groove 351, the ultrasonic dual crystal straight probe 51 descends and abuts against the crimping sleeve 70. At this time, the point detection of the crimping sleeve 70 can be completed. At the same time, during the movement of the intermittent lifting rod 35, the ultrasonic dual crystal straight probe 51 is lifted by the combined action of the slope groove 351 and the slope of the slope rod 54, and then slides into the next slope groove 351.

[0088] Trough 351 is a V-shaped groove (such as...) Figure 5 As shown in the figure, when the slope rod 54 slides down the slope, it avoids the problem of the ultrasonic dual crystal straight probe 51 directly hitting the crimp sleeve 70, causing dents or rebound of the detection head.

[0089] An adjusting nut 56 is threaded onto the long screw 55, and a spring 57 is fitted onto the long screw 55, with the spring 57 positioned between the adjusting nut 56 and the guide seat 121.

[0090] To ensure a proper fit between the probe portion of the ultrasonic dual-crystal straight probe 51 and the crimping sleeve 70, the elastic rebound force of the spring 57 ensures that the ultrasonic dual-crystal straight probe 51 is tightly attached to the outer wall of the crimping sleeve 70. Simultaneously, adjusting the adjusting nut 56 clockwise increases the elastic rebound force of the spring 57, while adjusting it counterclockwise decreases the elastic rebound force. Ultimately, by adjusting the spring 57's rebound force through the adjusting nut 56, the fit between the ultrasonic dual-crystal straight probe 51 and the crimping sleeve 70 is guaranteed, while also preventing excessive compression that could cause the crimping sleeve 70 to fail to rotate with the material handling rod 21.

[0091] like Figure 4 , Figure 5 , Figure 13 , Figure 14 , Figure 15 As shown, a drive bevel gear 42 is coaxially fixed at one end of the drive shaft 41, and a gear 44 is coaxially fixed at the other end. Since the drive shaft 41 and the bearing housing 22 are installed on the same conveyor chain plate 11, the normal transmission of the drive bevel gear 42 and the driven bevel gear 43 is ensured. The material pick-up rod 21 is coaxially fixed with the driven bevel gear 43 that meshes with the drive bevel gear 42. At the same time, a gear housing 49 is fixed on the side of the bearing housing 22 away from the material pick-up rod 21. The drive bevel gear 42 and the driven bevel gear 43 are placed inside the gear housing 49 for protection. After the gear 44 is coaxially fixed with the drive shaft 41, the gear 44 is placed outside the sprocket shaft 13 and is staggered from the sprocket and chain of the chain conveyor 10. Therefore, when the drive shaft 41 and the gear 44 pass through the sprocket shaft 13, interference with the sprocket shaft 13 is avoided.

[0092] The toothed plate 47 is fixed to the inner side of the frame plate 12 by multiple sets of fixing brackets 45. The toothed plate 47 is set parallel to the material picking rod 21. The toothed plate 47 is adapted to mesh with the gear 44. The chain plate support plate 46 is fixed on the fixing bracket 45. The chain plate support plate 46 is used to support the conveyor chain plate 11 to support the conveyor chain plate 11 in the thickness detection area and avoid the problem of multiple conveyor chain plates 11 in this area sinking downward.

[0093] The crossbar 53 is placed at one end of the toothed plate 47 near the storage assembly 60. When the gear 44 moves to one end of the toothed plate 47 and meshes, the gear 44 moves forward and drives the transmission shaft 41 to rotate under the action of the toothed plate 47. The transmission shaft 41 meshes with the driven bevel gear 43 through the drive bevel gear 42, thereby driving the picking rod 21 to rotate when it moves. Thus, through the setting of the picking rod transmission mechanism 40, the picking rod 21 can be linked with the moving conveyor chain plate 11, and no power supply is required, which is more energy-efficient.

[0094] like Figure 13 , Figure 14As shown, the inner side of the frame plate 12 is also fixedly connected to a limiting strip plate 48 by a fixing frame 45. The limiting strip plate 48 is parallel to the toothed plate 47 and forms a channel for the gear 44 to travel. The limiting strip plate 48 and the toothed plate 47 are both fixed with a third guide plate 471 that is inclined outward. The chain plate support plate 46 is fixed with a second guide plate 461 that is inclined downward at one end near the third guide plate 471.

[0095] To prevent gear 44 from colliding with the end of the toothed plate 47, the two third guide plates 471 form an outwardly expanding opening structure to facilitate the guidance of gear 44. At the same time, under the action of the limiting strip 48, gear 44 can be limited, thereby improving the stability of gear 44 when traveling along the channel. When gear 44 is meshed with toothed plate 47, it is guided by the second guide plate 461 to prevent chain plate support plate 46 from getting stuck in the gap between two adjacent conveyor chain plates 11. The chain plate support plate 46 supports the conveyor chain plate 11, thereby ensuring the stability of the conveyor chain plate 11 in the area of ​​the crimping sleeve 70 during the detection process. This avoids poor contact of the ultrasonic dual crystal straight probe 51 due to the downward collapse of the conveyor chain plate 11, and also avoids problems such as reflection, refraction or scattering caused by the tilting of the crimping sleeve 70 due to collapse.

[0096] Working principle:

[0097] Point-type spiral detection;

[0098] The intermittent lifting rod 35 is fixed on the crossbar 32. Multiple crimped sleeves 70 are coaxially placed into the hopper 61. The crimped sleeves 70 are arranged through the viewing window on the side wall of the guide pipe 62. At the same time, the viewing window is used to observe whether the crimped sleeves 70 in the guide pipe 62 are being discharged normally. The chain conveyor 10 is powered on and runs, and the drive motor 14 intermittently drives the sprocket shaft 13 to rotate. The sprocket shaft 13, under the action of the sprocket and chain, drives the conveyor plate assembly to transport in the reverse direction (e.g., Figure 1 (as shown)

[0099] (i) Material picking: The bottom picking rod 21 flips to the top, the conical head 241 is aligned with the bottom crimping sleeve 70, and the frontmost conical head 241 is inserted from the rear end of the crimping sleeve 70. Under the rebound force of the torsion spring 65, the pressure plate 63 abuts against the front end of the crimping sleeve 70. The picking rod 21 moves and inserts into the crimping sleeve 70. When the rear end of the crimping sleeve 70 abuts against the bearing seat 22, the pressure plate 63 flips upward under the pushing action of the bearing seat 22, and the pressure foot of the torsion spring 65 twists. The bottom crimping sleeve 70 completes material picking and positioning through the discharge port 621. At the same time, the crimping sleeve 70 in the guide tube 62 slides down under the action of gravity and abuts against the inner wall of the opening 622, completing automatic material replenishment.

[0100] (ii) Inspection: The inclined low end of the first guide plate 33 is placed below the slope rod 54, so that the slope rod 54, the cross rod 53, and the long screw 55 are raised. After the ultrasonic dual crystal straight probe 51 is raised, it does not contact the crimping sleeve 70. At this time, there is no test data. At the same time, the gear 44 meshes with the tooth plate 47 through the guidance of the two third guide plates 471, driving the transmission shaft 41 to rotate. The transmission shaft 41 drives the material picking rod 21 and the crimping sleeve 70 to rotate through the meshing of the active bevel gear 42 and the driven bevel gear 43.

[0101] (III) Point spiral thickness measurement: When the crimping sleeve 70 is moving, the slope rod 54 slides against the upper edge of the intermittent lifting rod 35. Under the gravity of the ultrasonic dual crystal straight probe 51, when the slope rod 54 passes through the slope groove 351 and slides downward, the ultrasonic dual crystal straight probe 51 descends and the probe part of the ultrasonic dual crystal straight probe 51 abuts against the crimping sleeve 70. Through the transmission cooperation between the transmission shaft 41 and the material picking rod 21, the crimping sleeve 70 moves in a straight line and rotates during the process of the ultrasonic dual crystal straight probe 51 being attached and detected. When the ultrasonic dual crystal straight probe 51 is intermittently rising and falling, the crimping sleeve 70 can be sampled and tested for thickness in a point spiral manner.

[0102] Linear spiral detection;

[0103] First, the butterfly nut 37 is removed from the bolt 36 by rotating it counterclockwise. Then, the intermittent lifting rod 35 is removed from the crossbar 32. Subsequently, the chain conveyor 10 is powered on and runs. The drive motor 14 drives the sprocket shaft 13 to rotate at a constant speed. Under the action of the sprocket and chain, the sprocket shaft 13 drives the conveyor chain plate 11 to move counterclockwise at a constant speed. The travel speed of the conveyor chain plate 11 is adjusted by adjusting the output speed of the drive motor 14. This allows for adjustment of the pitch during the linear spiral detection state. The slower the travel speed of the conveyor chain plate 11, the smaller the pitch and the more comprehensive the measurement data.

[0104] The material taking and inspection actions of the repeated point-type spiral detection are carried out. When the intermittent lifting rod 35 is suspended above the crossbar 32, the ultrasonic dual crystal straight probe 51 is always pressed against the outer surface of the crimping sleeve 70. Then, when the material taking rod 21 and the crimping sleeve 70 on the material taking rod 21 move and rotate, the ultrasonic dual crystal straight probe 51 continuously detects the crimping sleeve 70, and finally completes the linear spiral detection.

[0105] The ultrasonic dual-crystal straight probe 51 emits electromagnetic pulses to generate a changing magnetic field. This magnetic field induces eddy currents in the crimp sleeve 70, and the changes in the eddy currents generate ultrasonic waves. These ultrasonic waves propagate inside the crimp sleeve 70 and are reflected back at the other interface of the crimp sleeve 70, where they are received by the probe. By analyzing the received ultrasonic signals, the thickness of the crimp sleeve 70 can be accurately calculated, and the thickness data can be displayed on the display 52. ​​When the test data is within the qualified threshold, it is a qualified product; otherwise, it is an unqualified product. Finally, the tested crimp sleeve 70 is removed from the picking rod 21 and sorted.

[0106] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the present invention's technology and inventive concept, should be covered within the scope of protection of the present invention.

Claims

1. A cable crimping sleeve measuring device, comprising a chain conveyor (10), the chain conveyor (10) comprising multiple conveyor chain plates (11) and a frame plate (12), characterized in that, Also includes: A storage assembly (60) with an open bottom for storing crimped sleeves (70) is fixedly installed at one end of the chain conveyor (10); A material-retrieving mechanism (20) is mounted on the conveyor chain plate (11). The material-retrieving mechanism (20) includes a rotatable material-retrieving rod (21) for retrieving a crimped sleeve (70) from a storage assembly (60). The storage assembly (60) includes a pressure plate (63) for inserting the crimped sleeve (70) into the material-retrieving rod (21). The material picking rod transmission mechanism (40) includes a transmission shaft (41) for driving the material picking rod (21) to rotate. A dot-line detection switching assembly (30) includes a detachable intermittent lifting rod (35). The ultrasonic thickness measurement mechanism (50) includes a liftable ultrasonic dual crystal straight probe (51). The ultrasonic dual crystal straight probe (51) can perform linear spiral ultrasonic thickness detection or point spiral ultrasonic thickness detection by disassembling and assembling the intermittent lifting rod (35). The storage assembly (60) further includes: a hopper (61), the bottom of which is connected to a guide pipe (62), the lower end of which is provided with a discharge port (621), and the lower end of which is also provided with an open port (622), the pressing sleeve (70) slides axially through the discharge port (621) to discharge material, the pressing plate (63) is hinged to the upper edge of the discharge port (621) by a hinge, a positioning shaft (64) is fixed on the side of the guide pipe (62) near the discharge port (621), a torsion spring (65) is fixed on the positioning shaft (64), and the torsion spring (65) presses its foot on the pressing plate (63); The material taking rod (21) includes a thin rod with an outer diameter smaller than that of the crimping sleeve (70). The material taking rod (21) also includes a support column (24). Both ends of the thin rod are coaxially fixed with the support column (24). A conical head (241) is coaxially fixed at the front end of the support column (24). The point-line detection switching component (30) also includes multiple support poles (31), with horizontal bars (32) vertically fixed between the support poles (31) on the same side. The horizontal bars (32) are symmetrically provided with mounting holes (321) adapted to bolts (36). A first guide plate (33) is fixed to one end of the horizontal bar (32), and a lifting ramp (34) is fixed to the other end of the horizontal bar (32). Multiple grooves (351) are provided on one side of the intermittent lifting rod (35). The ultrasonic thickness measuring mechanism (50) further includes: a crossbar (53), with long screws (55) fixed at both ends of the crossbar (53), and slope rods (54) symmetrically fixed on the side of the crossbar (53) near the long screws (55), and a limit ring (551) fixed above the guide seat (121).

2. The cable crimping sleeve measuring device according to claim 1, characterized in that, The conveyor chain plate (11) is fixed with a bearing seat (22), and the material picking rod (21) is rotatably connected to the bearing seat (22) through the bearing. A pad (23) is fixed on one side of the bearing seat (22).

3. The cable crimping sleeve measuring device according to claim 2, characterized in that, The pressure plate (63) has a U-shaped opening (631) facing downwards, and the internal width of the U-shaped opening (631) is adapted to the support column (24).

4. The cable crimping sleeve measuring device according to claim 3, characterized in that, An adjusting nut (56) is threaded onto the long screw (55), and a spring (57) is sleeved on the long screw (55). The spring (57) is placed between the adjusting nut (56) and the guide seat (121).

5. The cable crimping sleeve measuring device according to claim 1, characterized in that, One end of the drive shaft (41) is coaxially fixed with a drive bevel gear (42), and the other end is coaxially fixed with a gear (44). The material pick-up rod (21) is coaxially fixed with a driven bevel gear (43) that meshes with the drive bevel gear (42). The inner side of the frame plate (12) is fixed with a toothed plate (47) through multiple sets of fixing frames (45). The toothed plate (47) meshes with the gear (44). A chain plate support plate (46) is fixed on the fixing frame (45).

6. The cable crimping sleeve measuring device according to claim 5, characterized in that, The inner side of the frame plate (12) is also fixedly connected to a limiting strip plate (48) by a fixing frame (45). The limiting strip plate (48) is parallel to the toothed plate (47) and forms a channel for the gear (44) to travel. The limiting strip plate (48) and the toothed plate (47) are both fixed with a third guide plate (471) that is inclined outward. The chain plate support plate (46) is fixed with a second guide plate (461) that is inclined downward at one end near the third guide plate (471).

Images