Cable crimping sleeve measuring device

Abstract

The invention discloses a cable crimping sleeve measuring device, and relates to the technical field of detection equipment, the cable crimping sleeve measuring device comprises a chain scraper conveyor, the chain scraper conveyor comprises a plurality of conveying chain plates and a rack plate, and the cable crimping sleeve measuring device further comprises a material storage assembly with an opening in the bottom and used for storing crimping sleeves, and the material storage assembly is fixedly installed at one end of the chain scraper conveyor; the material taking rod transmission mechanism comprises a transmission shaft for driving the material taking rod to rotate; a point line detection switching assembly, wherein the point line detection switching assembly comprises a detachable intermittent lifting rod; the ultrasonic thickness measuring mechanism comprises a liftable ultrasonic bicrystal normal probe; the ultrasonic bicrystal normal probe realizes the line spiral ultrasonic thickness detection or point spiral ultrasonic thickness detection of the ultrasonic bicrystal normal probe through the disassembly and assembly of the intermittent lifting rod, and solves the problems that the traditional ultrasonic detection efficiency on the thickness of the crimping sleeve is low, the missing detection occurs and the linear detection cannot be met.

Description

Technical Field

[0001] The present invention relates to the technical field of detection equipment, and particularly relates to a measuring device for cable crimp sleeves. Background Art

[0002] A wire crimp sleeve is an electrical fitting used to connect wires, usually made of copper tubes. Its main function is to firmly connect two wires together by crimping to ensure the smooth conduction of current and the reliability of the connection.

[0003] During the production process of crimp sleeves, the situation of uneven materials may occur. The thickness of the crimp sleeve directly affects its strength and durability. Uneven thickness of the crimp sleeve may lead to uneven current distribution, affecting electrical performance. If the thickness of some parts of the crimp sleeve is insufficient, it may result in an insecure connection, increasing the risk of the wire falling off or disconnecting during use. This will cause current interruption and affect the normal operation of the equipment. Through multi-point ultrasonic thickness detection, non-destructive detection of the thickness of the sleeve at different positions can be ensured, thus guaranteeing the reliability of the connection.

[0004] However, when currently performing ultrasonic thickness detection on crimp sleeves, it mainly relies on manually holding the crimp sleeve with one hand and holding the ultrasonic double crystal straight probe with the other hand to fit it on the outer wall of the crimp sleeve, and then randomly selecting points on the outer wall of the crimp sleeve for multi-point ultrasonic thickness detection. This detection method has the following defects in the actual detection process: (1) Low manual detection efficiency and high labor cost; (2) When manually randomly selecting points, it is easy for the detector to fail to detect the number of points as required, resulting in fewer detected points, thereby reducing the true detection data of the crimp sleeve; (3) When applied to high-precision electrical equipment, a higher requirement for the thickness uniformity of the crimp sleeve is needed, and the current point detection method cannot meet the use requirements. Summary of the Invention

[0005] The purpose of the present invention is to propose a measuring device for cable crimp sleeves to solve the problems of low efficiency, missed detection, and inability to meet linear detection in the traditional thickness detection of crimp sleeves.

[0006] To achieve the above purpose, the present invention adopts the following technical solution: a measuring device for cable crimp sleeves:

[0007] It includes a chain plate conveyor, and the chain plate conveyor includes multiple conveying chain plates and a frame plate. It further includes:

[0008] A storage component with an open bottom for storing crimp sleeves, and the storage component is fixedly installed at one end of the chain plate conveyor;

[0009] The material taking mechanism installed on the conveying chain plate, the material taking mechanism includes a rotatable material taking rod for inserting the crimping sleeve from the storage component, and the storage component includes a pressing plate for inserting the crimping sleeve onto the material taking rod;

[0010] The material taking rod transmission mechanism, the material taking rod transmission mechanism includes a transmission shaft for driving the material taking rod to rotate self - clockwise;

[0011] The dot - line detection and switching component, the dot - line detection and switching component includes a detachable intermittent lifting rod;

[0012] The ultrasonic thickness measurement mechanism, including a liftable ultrasonic double - crystal straight probe, and the ultrasonic double - crystal straight probe realizes line - spiral ultrasonic thickness detection or point - spiral ultrasonic thickness detection through the disassembly and assembly of the intermittent lifting rod.

[0013] As a further description of a cable crimping sleeve measurement device of the above - mentioned technology:

[0014] The storage component further includes: a hopper, the bottom of the hopper is connected through a guide pipe, the lower end of the guide pipe is provided with a discharge port, the lower end of the guide pipe is also provided with an open port, the crimping sleeve slides axially out through the discharge port, the pressing plate is hinged to the upper edge of the discharge port through a hinge, a positioning shaft is fixed on one side of the guide pipe close to the discharge port, and a torsion spring is fixed on the positioning shaft, and the torsion spring pressure foot presses on the pressing plate.

[0015] As a further description of a cable crimping sleeve measurement device of the above - mentioned technology:

[0016] A bearing seat is fixed on the conveying chain plate, the material taking rod is rotationally connected to the bearing seat through a bearing, and a backing plate is fixed on one side of the bearing seat.

[0017] As a further description of a cable crimping sleeve measurement device of the above - mentioned technology:

[0018] The material taking rod includes a thin rod with an outer diameter smaller than that of the crimping sleeve, the material taking rod also includes a support column, support columns are coaxially fixed at both ends of the thin rod, and a conical head is coaxially fixed at the front end of the support column during travel.

[0019] As a further description of a cable crimping sleeve measurement device of the above - mentioned technology:

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

[0021] As a further description of a cable crimping sleeve measurement device of the above - mentioned technology:

[0022] The dot-line detection and switching component further includes a plurality of support vertical rods. A cross bar is vertically fixed between the support vertical rods on the same side. The cross bar is symmetrically provided with mounting holes adapted to bolts. A first guiding plate is fixed at one end of the cross bar, and a lifting slope block is fixed at the other end of the cross bar. A plurality of slope grooves are provided on one side of the intermittent lifting rod.

[0023] The ultrasonic thickness measurement mechanism further includes: a cross bar. Long screw rods are fixed at both ends of the cross bar. Slope rods are symmetrically fixed on one side of the cross bar close to the long screw rods. A limit ring is fixed above the guiding seat where the long screw rods are located.

[0024] As a further description of a cable crimping sleeve measuring device of the above technology:

[0025] An adjusting nut is threadedly connected to the long screw rod. A spring is sleeved on the long screw rod, and the spring is located between the adjusting nut and the guiding seat.

[0026] As a further description of a cable crimping sleeve measuring device of the above technology:

[0027] One end of the transmission shaft is coaxially fixed with a driving bevel gear, and the other end is coaxially fixed with a gear. The material taking rod is coaxially fixed with a driven bevel gear meshing with the driving bevel gear. A toothed plate is fixed on the inner side of the frame plate through multiple groups of fixing frames. The toothed plate is adapted to mesh with the gear, and a chain plate support plate is fixed on the fixing frame.

[0028] As a further description of a cable crimping sleeve measuring device of the above technology:

[0029] A limiting strip plate is also fixedly connected to the inner side of the frame plate through a fixing frame. The limiting strip plate is parallel to the toothed plate and forms a channel for the gear to travel. Third guiding plates inclined outward are fixed at the same-side ends of the limiting strip plate and the toothed plate. A second guiding plate inclined downward is fixed at one end of the chain plate support plate close to the third guiding plate.

[0030] In summary, due to adopting the above technology of a cable crimping sleeve measuring device, the beneficial effects of the present invention are:

[0031] 1. Through the installable intermittent lifting rod, when performing conventional point-type thickness measurement on the crimping sleeve, through the intermittent lifting rod, the ultrasonic double-crystal straight probe intermittently contacts the crimping sleeve. The conveying chain plate drives the material taking rod, the crimping sleeve inserted on the material taking rod, and the intermittent lifting rod to travel and rotate. And when the ultrasonic double-crystal straight probe descends, the detection head of the ultrasonic double-crystal straight probe abuts against the crimping sleeve, and then the thickness of the crimping sleeve can be detected. Through the spiral rotation and travel of the crimping sleeve, the point-type spiral thickness detection of the crimping sleeve is completed, thus avoiding the problem of missed points when manually performing point detection.

[0032] 2. After disassembling the dot-line detection and switching component of the intermittent lifting rod, the ultrasonic dual-crystal straight probe against the crimping sleeve can perform linear spiral thickness detection on the advancing and rotating crimping sleeve, thereby enabling a more comprehensive measurement of the thickness of the crimping sleeve. And by adjusting the speed of the conveying chain plate, the slower the advancing speed of the conveying chain plate, the smaller the pitch, and the more comprehensive the measurement data will be.

[0033] 3. Insert the crimping sleeve onto the material taking rod through the pressure plate. After it is fully inserted, the pressure plate is lifted upward by the crimping sleeve and flipped, so as not to affect the normal advancement of the material taking rod. At the same time, it also ensures that the crimping sleeve can be fully inserted onto the material taking rod. After the lowermost crimping sleeve is taken, the crimping sleeve in the guide pipe slides downward under the action of gravity to complete automatic feeding, thereby improving the measurement efficiency and reducing the labor cost.

[0034] 4. Using two support columns as the insertion and extraction part, a cavity is formed between the insertion and extraction part and the thin rod. Therefore, when the ultrasonic dual-crystal straight probe is detecting the thickness of the crimping sleeve, the propagation path of the ultrasonic wave can be avoided from being interfered, and reflection, refraction or scattering can be avoided when detecting the crimping part, thereby improving the intensity and clarity of the detection signal of the crimping part of the crimping sleeve. Brief Description of the Drawings

[0035] Figure 1 Shows a schematic diagram of the overall dot-type spiral thickness detection state provided by an embodiment of the present invention;

[0036] Figure 2 Shows the one provided by an embodiment of the present invention Figure 1 Left view structure schematic diagram;

[0037] Figure 3 Shows the one provided by an embodiment of the present invention Figure 2 Enlarged structure schematic diagram at A in the middle;

[0038] Figure 4 Shows a schematic diagram of the structure of the intermittent lifting rod, the backing plate and the transmission mechanism of the material taking rod provided by an embodiment of the present invention;

[0039] Figure 5 Shows the one provided by an embodiment of the present invention Figure 4 Exploded structure schematic diagram in the middle;

[0040] Figure 6 Shows a front view structure schematic diagram of the cross bar and the backing plate provided by an embodiment of the present invention;

[0041] Figure 7 Shows a front view structure schematic diagram of the intermittent lifting rod provided by an embodiment of the present invention;

[0042] Figure 8Shows a schematic diagram of the structure where the pressure plate is lifted according to an embodiment of the present invention;

[0043] Figure 9 Shows that provided according to an embodiment of the present invention Figure 8 Schematic diagram of the enlarged structure at position B in

[0044] Figure 10 Shows that provided according to an embodiment of the present invention Figure 8 Partial front view structure diagram;

[0045] Figure 11 Shows a schematic diagram of the structure of an ultrasonic double-crystal straight probe and a slope rod according to an embodiment of the present invention;

[0046] Figure 12 Shows that provided according to an embodiment of the present invention Figure 11 Schematic diagram of the enlarged structure at position C in

[0047] Figure 13 Shows a schematic diagram of the installation structure of a fixing frame, a toothed plate, and a limiting plate according to an embodiment of the present invention;

[0048] Figure 14 Shows a schematic diagram of the transmission mechanism and the transmission structure of a material taking rod according to an embodiment of the present invention;

[0049] Figure 15 Shows that provided according to an embodiment of the present invention Figure 14 Left view structure diagram;

[0050] Figure 16 Shows a schematic diagram of a partial structure of an ultrasonic double-crystal straight probe for line-type spiral detection according to an embodiment of the present invention;

[0051] Figure 17 Shows a schematic diagram of the state of line-type spiral detection of a crimping sleeve pipe according to an embodiment of the present invention;

[0052] Figure 18 Shows a schematic diagram of the state of point-type spiral detection of a crimping sleeve pipe according to an embodiment of the present invention.

[0053] Legend description:

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

[0055] 20. Material taking mechanism; 21. Material taking rod; 22. Bearing seat; 23. Base plate; 24. Support column; 241. Tapered head;

[0056] 30. Point and line detection switching assembly; 31. Supporting pole; 32. Crossbar; 321. Mounting hole; 33. First guide plate; 34. Lifting slope block; 35. Intermittent lifting rod; 351. Slope groove; 36. Bolt; 37. Butterfly nut;

[0057] 40. Material-taking rod transmission mechanism; 41. Transmission shaft; 42. Active bevel gear; 43. Driven bevel gear; 44. Gear; 45. Fixed frame; 46. Chain plate support plate; 461. Second guide plate; 47. Tooth plate; 471. Third guide plate; 48. Limiting strip plate; 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. Material hopper; 62. Material guide pipe; 621. Material outlet; 622. Opening port; 63. Material pressing plate; 631. U-shaped port; 64. Positioning shaft; 65. Torsion spring; 66. Support frame;

[0060] 70. Crimping sleeve. DETAILED DESCRIPTION

[0061] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technology of a cable crimp sleeve measuring device 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.

[0062] like Figure 1 - Figure 18 As shown, the present invention provides: a cable crimping sleeve measuring device, including a chain plate conveyor 10, the chain plate conveyor 10 includes a plurality of conveying chain plates 11 and a frame plate 12, the chain plate conveyor 10 also includes a driving motor 14 and a sprocket shaft 13 connected to the driving motor 14, wherein the driving motor 14 is a servo motor, so as to accurately control the conveying chain plate 11, which ensures the stability and synchronization of the material during the conveying process, and also includes: a storage assembly 60 with an opening at the bottom and used to store the crimping sleeve 70, the storage assembly 60 is fixedly mounted on the conveying front end of the chain plate conveyor 10, and the bottom is suspended, and the spacing between the storage assembly 60 and the conveying front end of the chain plate conveyor 10 is greater than the length of the material picking rod 21, so as to avoid the material picking rod 21 from being stuck on the outer wall of the storage assembly 60 after flipping from the bottom to the top;

[0063] The material taking mechanism 20 is installed on the conveying chain plate 11. There are multiple groups of the material taking mechanism 20, which are fixedly installed on the conveying chain plate 11 at intervals through multiple groups of the material taking mechanism 20. The circulating and rotating conveying chain plate 11 can drive the material taking mechanism 20 to rotate circularly, and finally realize the cyclic material taking of the material taking rod 21, so as to realize the mechanized material taking. The material taking mechanism 20 includes a rotatable material taking rod 21 for inserting and taking the crimping sleeve 70 from the storage component 60. The material taking rod 21 is coaxially arranged with the crimping sleeve 70 in the storage component 60. When the material taking rod 21 moves to one end of the lowermost crimping sleeve 70 and inserts, the storage component 60 includes a pressing plate 63 for inserting the crimping sleeve 70 onto the material taking rod 21. The upper edge of the pressing plate 63 is hinged to the bottom opening of the storage component 60 on the side far from the conveying front end of the chain conveyor 10 through a hinge. The pressing plate 63 inserts the crimping sleeve 70 onto the material taking rod 21, and when it is completely inserted, the pressing plate 63 is lifted upward and flipped, so as not to affect the normal movement of the material taking rod 21, and at the same time ensure that the crimping sleeve 70 can be completely inserted onto the material taking rod 21 to realize automatic material taking;

[0064] The material taking rod transmission mechanism 40 includes a transmission shaft 41 perpendicular to and driving the material taking rod 21. The transmission shaft 41 is rotatably installed on the conveying chain plate 11 through a bearing and is installed on the same conveying chain plate 11 as the material taking mechanism 20, so as to ensure the stability of the transmission of the transmission shaft 41. The transmission shaft 41 is used to drive the material taking rod 21 to rotate self - sufficiently. Finally, during the movement of the material taking rod 21, it can also rotate self - sufficiently;

[0065] There are two groups of dot - line detection and switching components 30, which are symmetrically fixed on both sides of the material taking mechanism 20 to improve the stability of the intermittent lifting of the intermittent lifting rod 35 and prevent tilting to one side. A channel is formed between the two groups of dot - line detection and switching components 30, and the distance between this channel is greater than the bottom transverse dimension of the storage component 60, so as to ensure the normal movement of the dot - line detection and switching components 30. The dot - line detection and switching components 30 include a detachable intermittent lifting rod 35;

[0066] The ultrasonic thickness measurement mechanism 50 includes: a liftable ultrasonic double - crystal straight probe 51. The ultrasonic double - crystal straight probe 51 is an electromagnetic ultrasonic double - crystal straight probe. Therefore, when measuring the ultrasonic thickness, it is not necessary to apply a coupling agent to the crimping sleeve 70. The crimping sleeve 70 inserted on the material taking rod 21 is placed directly below the ultrasonic double - crystal straight probe 51. The ultrasonic double - crystal straight probe 51 realizes the line - spiral ultrasonic thickness detection or the point - spiral ultrasonic thickness detection of the ultrasonic double - crystal straight probe 51 through the disassembly and assembly of 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 double crystal straight probe 51 can be reciprocally lifted and lowered by the intermittent lifting rod 35. When rising, the ultrasonic double crystal straight probe 51 is lifted and does not contact the crimping sleeve 70. The chain plate conveyor 10 drives the conveying chain plate 11 to move forward. At this time, the conveying chain plate 11 drives the material taking rod 21, the crimping sleeve 70 inserted on the material taking rod 21, and the intermittent lifting rod 35 to move forward and rotate. When the ultrasonic double crystal straight probe 51 descends, the detection head of the ultrasonic double crystal straight probe 51 abuts against the crimping sleeve 70, and the thickness of the crimping sleeve 70 can be detected. And through the intermittent spiral rotation and advancement of the crimping sleeve 70, the point-type spiral thickness detection of the crimping sleeve 70 is completed (as Figure 18 shown). And during the point detection, the wear between the ultrasonic double crystal straight probe 51 and the crimping sleeve 70 can be reduced, and the service life of the ultrasonic double crystal straight probe 51 can be improved;

[0068] After the intermittent lifting rod 35 is disassembled, the driving motor 14 of the chain plate conveyor 10 drives the conveying chain plate 11 to move forward at a constant speed. When the crimping sleeve 70 inserted reaches below the ultrasonic double crystal straight probe 51, the ultrasonic double crystal straight probe 51 abutting against the crimping sleeve 70 can perform linear spiral thickness detection on the advancing and self-rotating crimping sleeve 70. And by adjusting the advancing speed of the conveying chain plate 11, the spiral pitch of the linear spiral detection can also be controlled, thereby improving the detection of the crimping sleeve 70 (as Figure 17 shown). It realizes the point or line spiral ultrasonic thickness detection of the crimping sleeve 70 according to the use requirements, avoids the number of detection points being less than the required number during point detection, and improves the detection efficiency.

[0069] Among them, during the detection process, the crimping sleeve 70 and the material taking rod 21 are in surface contact, while the crimping sleeve 70 and the ultrasonic double crystal straight probe 51 are in point contact. The probe parts of the material taking rod 21 and the ultrasonic double crystal straight probe 51 are made of the same material. Therefore, the friction force between the crimping sleeve 70 and the material taking rod 21 is greater than the friction force between the crimping sleeve 70 and the ultrasonic double crystal straight probe 51. At the same time, the surface of the material taking rod 21 is treated with frosting to increase the friction coefficient with the inner wall of the crimping sleeve 70, and finally the problem that the crimping sleeve 70 cannot follow the self-rotation of the material taking rod 21 during linear spiral detection or point-type spiral detection can be avoided.

[0070] As Figure 4 、 Figure 5 、 Figure 8 、 Figure 9 、 Figure 10 shown, the storage component 60 further includes: a hopper 61, a guide pipe 62 is 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 through the guidance of the guide pipe 62, the axes of the crimping sleeves 70 in the guide pipe 62 are arranged in parallel and stacked one above the other in sequence;

[0071] The lower end of the material guiding pipe 62 is provided with a discharge port 621, the discharge port 621 faces the advancing direction of the conveying 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 materials. Openings 622 are provided on both sides of the lower end of the material guiding pipe 62. The opening 622 is smaller than the outer diameter of the crimping sleeve 70 and larger than the outer dimension of the material taking part of the material taking mechanism 20, so that the bearing seat 22 can move along the channel formed by the opening 622. At the same time, one end of the material guiding pipe 62 close to the opening 622 is an arc structure and is coaxial with the lowermost crimping sleeve 70. The setting of the opening 622 can, firstly, prevent the crimping sleeve 70 from falling from the bottom; secondly, position the lowermost crimping sleeve 70 through the inner arc structure and make the lowermost crimping sleeve 70 coaxial with the material taking rod 21 after positioning; thirdly, ensure the normal movement of the bearing seat 22;

[0072] In order to better install the crimping sleeve 70 on the material taking rod 21 completely through the pressing plate 63, the pressing plate 63 is hinged to the upper edge of the discharge port 621 through a hinge, the positioning shaft 64 is fixed on one side of the material guiding pipe 62 close to the discharge port 621 (such as Figure 1 the side far from the driving motor 14 shown in the figure), the torsion spring 65 is sleeved on the positioning shaft 64 and both ends are fixed on the positioning shaft 64, and the pressing foot presses on the pressing plate 63;

[0073] Under normal conditions, the pressing plate 63 fits on the side wall of the material guiding pipe 62, and at the same time, the pressing plate 63 is pressed tightly on the side wall of the material guiding pipe 62 by the resilience of the pressing foot. When the material taking rod 21 takes materials, under the action of the resilience, the pressing plate 63 resists the end of the crimping sleeve 70, and when the crimping sleeve 70 is completely inserted onto the material taking rod 21, the thrust generated when the material taking rod 21 drives the crimping sleeve 70 to move forward causes the pressing plate 63 to turn upward (as Figure 10 shown in the figure), and when the crimping sleeve 70 moves away, at this time, the pressing plate 63 automatically resets under the resilience of the torsion spring 65, and the next crimping sleeve 70 falls to replenish materials;

[0074] The hopper 61 and the material guiding pipe 62 are fixed on the frame plate 12 through the support frame 66, and the axis of the crimping sleeve 70 is parallel to the advancing direction of the conveying chain plate 11. The hopper 61 and the material guiding pipe 62 are suspended through the support frame 66 to prevent them from being blocked by the material taking mechanism 20 during the material taking process and unable to move forward.

[0075] As Figure 4 , Figure 5 , Figure 6As shown, a bearing seat 22 is fixed on the conveying chain plate 11. The material taking rod 21 is coaxially rotatably connected to the bearing seat 22 through a bearing, and the opening size of the material taking part above the bearing seat 22 is smaller than that of the opening 622. The advancing bearing seat 22 can advance along the opening 622 to prevent the bearing seat 22 from getting stuck on the guide pipe 62. The backing plate 23 is fixedly installed at one end of the bearing seat 22 close to the material taking rod 21 for supporting the crimping sleeve 70.

[0076] When the backing plate 23 is flipped above the chain conveyor 10, the lower surface of the backing plate 23 at this time fits on the upper surface of the conveying chain plate 11. The distance between the backing plate 23 and the material taking rod 21 is greater than the thickness of the crimping sleeve 70. When the crimping sleeve 70 is inserted on the material taking rod 21, the upper surface of the backing plate 23 is close to but does not contact the outer wall of the crimping sleeve 70 at this time. Since when measuring the point or line spiral thickness, the ultrasonic double crystal straight probe 51 will press the material taking rod 21 to bend downward, which causes the angle between the crimping sleeve 70 and the ultrasonic double crystal straight probe 51 to change. When the angle changes continuously, the ultrasonic propagation path of the ultrasonic double crystal straight probe 51 also changes accordingly, which affects the measurement data. Therefore, when the ultrasonic double crystal straight probe 51 presses on the outer wall of the crimping sleeve 70, through the support of the bottom backing plate 23, the material taking rod 21 can be prevented from being bent greatly by the ultrasonic double crystal straight probe 51, thereby improving the accuracy of the measurement data.

[0077] As Figure 5 、 Figure 9 、 Figure 16 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 support columns 24. Support columns 24 are coaxially fixed at both ends of the thin rod, and a conical head 241 is coaxially fixed at the front end of the advancing support column 24.

[0078] When the crimping sleeve 70 crimps and connects two sections of cables, there will be a surplus at both ends. Therefore, the current of the crimping sleeve 70 mainly passes through the crimping part. Furthermore, through this characteristic, during the thickness detection of the crimping sleeve 70, more attention is paid to measuring the thickness of the crimping part.

[0079] By coaxially fixing the support columns 24 at both ends of the thin rod and coaxially fixing the conical head 241 at the front section of the advancing support column 24, it is convenient for the material taking rod 21 to be inserted onto the material taking rod 21. When one end of the crimping sleeve 70 abuts against the side wall of the bearing seat 22, the connection part between the crimping sleeve 70 and the support column 24 is the surplus, and the two support columns 24 are the insertion parts. A cavity is formed between the crimping part and the thin rod. Therefore, when the ultrasonic double crystal straight probe 51 detects the thickness of the crimping sleeve 70, the ultrasonic propagation path can be prevented from being interfered, and reflection, refraction or scattering can be avoided when detecting the crimping part, thereby improving the intensity and clarity of the detection signal of the crimping part of the crimping sleeve 70.

[0080] As shown Figure 9 in the figure, the pressure plate 63 is provided with a U-shaped opening 631 facing downward, and the inner width of the U-shaped opening 631 is adapted to the support column 24.

[0081] After the conical head 241 passes through the U-shaped opening 631 and when the crimping sleeve 70 abuts against the inner side of the pressure plate 63, the pressure plate 63 can normally install the crimping sleeve 70 on the support column 24. And when one end of the crimping sleeve 70 abuts against the bearing seat 22, at this time, the two ends of the crimping sleeve 70 are respectively coplanar with the two support columns 24, thereby ensuring the picking of the crimping sleeve 70 by the picking rod 21. At the same time, it ensures that the support column 24 and the crimping sleeve 70 can be in full contact, avoiding the reduction of the friction coefficient caused by local insertion, and can position the crimping sleeve 70.

[0082] As shown Figure 2 - Figure 7 、 Figure 12 、 Figure 13 in the figure, the dot-line detection switching component 30 further includes a plurality of support vertical rods 31.

[0083] A plurality of cross rods 32 are fixedly installed on both sides of the picking mechanism 20. The support vertical rods 31 are fixed on the side wall of the backing plate 23. The cross rods 32 are vertically fixed between the support vertical rods 31 on the same side. And the two cross rods 32 are parallel to the axis of the crimping sleeve 70. The cross rods 32 are symmetrically provided with mounting holes 321 adapted to the bolts 36. One end of the cross rod 32 close to the ultrasonic double-crystal straight probe 51 is fixed with a first guiding plate 33 inclined downward. The lower end of the first guiding plate 33 is lower than the slope rod 54. When the cross rod 32 moves forward, the slope rod 54 can be lifted along the slope by the first guiding plate 33 to ensure the normal movement of the cross rod 32 and the lifting of the ultrasonic double-crystal straight probe 51.

[0084] The other end of the cross rod 32 is fixed with a lifting slope block 34. One end of the cross rod 32 close to the ultrasonic double-crystal straight probe 51 and the lifting slope block 34 can lift the ultrasonic double-crystal straight probe 51. And when the slope rod 54 slides along the first guiding plate 33 and the lifting slope block 34, at this time, the ultrasonic double-crystal straight probe 51 is suspended at the surplus parts at both ends of the crimping sleeve 70. The surplus parts do not participate in the crimping. Therefore, the influence of the thickness uniformity on the connection of the cable is small, and the detection of the surplus parts can be ignored. Furthermore, the detection data can be reduced, and the wear of the ultrasonic double-crystal straight probe 51 and the crimping sleeve 70 during the online spiral detection can be reduced, and the service life of the ultrasonic double-crystal straight probe 51 can be increased.

[0085] The intermittent lifting rod 35 is symmetrically fixed with bolts 36. A plurality of slope grooves 351 are formed 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 threadedly connecting the wing nuts 37 with the bolts 36, the disassembly and assembly of the intermittent lifting rod 35 and the cross bar 32 can be realized;

[0086] The ultrasonic thickness measuring mechanism 50 further includes: a cross bar 53. Long screws 55 are fixed at both ends of the cross bar 53. The ultrasonic double crystal straight probe 51 is fixed below the cross bar 53, and the probe part is placed below. On the side of the cross bar 53 close to the long screws 55, slope rods 54 are symmetrically fixed. The slope rods 54 are in conformity with the slopes of the slope grooves 351. The long screws 55 are slidably inserted into the guide seats 121 on the side wall of the frame plate 12. The long screws 55 are guided by the guide seats 121, and the ultrasonic double crystal straight probe 51 is lifted and lowered along the radial direction of the crimping sleeve 70. A limit ring 551 is fixed above the long screws 55 placed in the guide seats 121;

[0087] When the limit ring 551 abuts against the upper part of the guide seat 121, the lower end of the ultrasonic double crystal straight probe 51 is within the radius range of the crimping sleeve 70 at this time. At the same time, the lower edge of the slope rod 54 is above the low point of the inclined end of the first guiding plate 33, so as to facilitate the first guiding plate 33 to lift the slope rod 54. When the slope rod 54 slides along the intermittent lifting rod 35 and slides into the slope groove 351, the ultrasonic double 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, under the combined action of the slope groove 351 and the slope of the slope rod 54 at this time, the ultrasonic double crystal straight probe 51 is lifted and then slides into the next slope groove 351;

[0088] The slope groove 351 is a V-shaped groove (as Figure 5 shown), so when the slope rod 54 slides downward along the slope, the problem of the ultrasonic double crystal straight probe 51 directly hitting the crimping sleeve 70 and causing depression or the detection head rebounding is avoided.

[0089] An adjusting nut 56 is threadedly connected to the long screw 55. 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.

[0090] In order to improve the fit between the probe part of the ultrasonic twin crystal straight probe 51 and the crimping sleeve 70, the elastic rebound force of the spring 57 can be used to make the ultrasonic twin crystal straight probe 51 close to the outer wall of the crimping sleeve 70. At the same time, by adjusting the nut 56 in a clockwise direction, the elastic rebound force of the spring 57 is increased, and conversely, by adjusting the counterclockwise direction, the elastic rebound force of the spring 57 is reduced. Finally, by adjusting the rebound force of the spring 57 by the adjusting nut 56, the fit between the ultrasonic twin crystal straight probe 51 and the crimping sleeve 70 is guaranteed, and the problem of the crimping sleeve 70 being unable to follow the rotation of the material picking rod 21 due to excessive extrusion is avoided.

[0091] like Figure 4 , Figure 5 , Figure 13 , Figure 14 , Figure 15 As shown, a driving bevel gear 42 is coaxially fixed to one end of the transmission shaft 41, and a gear 44 is coaxially fixed to the other end. Since the transmission shaft 41 and the bearing seat 22 are installed on the same conveying chain plate 11, in order to ensure the normal transmission of the driving bevel gear 42 and the driven bevel gear 43, the material picking rod 21 is coaxially fixed with a driven bevel gear 43 meshing with the driving bevel gear 42. At the same time, a gear housing 49 is fixed on the side of the bearing seat 22 away from the material picking rod 21. The driving bevel gear 42 and the driven bevel gear 43 are placed in the gear housing 49 for protection. After the gear 44 is coaxially fixed to the transmission shaft 41, the gear 44 is placed on the outside of the sprocket shaft 13, and is staggered with the sprocket and chain of the chain conveyor 10. Therefore, when the transmission shaft 41 and the gear 44 pass through the sprocket shaft 13, interference with the sprocket shaft 13 is avoided.

[0092] The tooth plate 47 is fixed to the inner side of the frame plate 12 through multiple sets of fixing frames 45. The tooth plate 47 is arranged parallel to the material picking rod 21. The tooth plate 47 is adapted to mesh with the gear 44. The chain plate support plate 46 is fixed on the fixing frame 45. The chain plate support plate 46 is used to support the conveying chain plate 11 to support the conveying chain plate 11 in the thickness detection area to avoid the problem of multiple conveying chain plates 11 in this area sinking downward.

[0093] The cross rod 53 is placed at one end of the tooth plate 47 close to the material storage assembly 60, and when the gear 44 moves to one end of the tooth plate 47 and engages, as the gear 44 moves, the transmission shaft 41 is driven to rotate under the action of the tooth plate 47, and the transmission shaft 41 is engaged with the driven bevel gear 42 and the driven bevel gear 43, thereby driving the material picking rod 21 to rotate while moving. Furthermore, through the setting of the material picking rod transmission mechanism 40, the material picking rod 21 can be linked with the moving conveying chain plate 11, and no power supply is required, which is more energy-saving.

[0094] like Figure 13 , Figure 14As shown, a limiting strip plate 48 is also fixedly connected to the inner side of the frame plate 12 through 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. Third guiding plates 471 inclined outward are fixedly provided at the same-side ends of the limiting strip plate 48 and the toothed plate 47. A second guiding plate 461 inclined downward is fixedly provided at one end of the chain plate support plate 46 close to the third guiding plate 471.

[0095] In order to avoid tooth collision at the ends of the gear 44 and the toothed plate 47, the two third guiding plates 471 form an outwardly expanding opening structure to facilitate the guiding of the gear 44. At the same time, under the action of the limiting strip plate 48, the gear 44 can be limited, thereby improving the stability of the gear 44 when traveling along the channel. When the gear 44 is in a meshed state with the toothed plate 47, through the guiding of the second guiding plate 461, it is avoided that the chain plate support plate 46 is stuck in the gap between two adjacent conveying chain plates 11. And through the support of the chain plate support plate 46 for the conveying chain plates 11, the support stability of the conveying chain plates 11 in the area of the crimping sleeve 70 during the detection process can be guaranteed, avoiding poor contact of the ultrasonic dual-crystal straight probe 51 caused by the downward collapse of the conveying chain plates 11. At the same time, it also avoids problems such as reflection, refraction or scattering caused by the inclination of the crimping sleeve 70 due to the collapse.

[0096] Working principle:

[0097] Point-type spiral detection;

[0098] The intermittent lifting rod 35 is fixed on the cross bar 32. Multiple crimping sleeves 70 are coaxially placed into the hopper 61. The crimping sleeves 70 are sorted through the viewing window opened on the side wall of the material guiding pipe 62. At the same time, it is observed through the viewing window whether the crimping sleeves 70 in the material guiding pipe 62 are feeding normally. The chain plate conveyor 10 is powered on and runs, and the driving motor 14 drives the sprocket shaft 13 to rotate intermittently. The sprocket shaft 13 drives the conveying plate group to convey reversely under the action of the sprockets and chains (as Figure 1 shown);

[0099] (1) Material taking: The material taking rod 21 at the bottom flips to the upper side, the conical head 241 aligns with the lowermost crimping sleeve 70, and the conical head 241 at the forefront inserts into the rear end of the crimping sleeve 70. Under the resilience of the pressing foot of the torsion spring 65, the pressing plate 63 abuts against the front end of the crimping sleeve 70. The material taking rod 21 travels and inserts into the crimping sleeve 70. When the rear end of the crimping sleeve 70 abuts against the bearing seat 22, at this time, under the pushing action of the bearing seat 22, the pressing plate 63 flips upward, and the pressing foot of the torsion spring 65 twists. The lowermost crimping sleeve 70 completes material taking through the discharge port 621 and completes positioning. At the same time, the crimping sleeves 70 in the material guiding pipe 62 slide downward under the action of gravity and abut against the inner wall of the open port 622 to complete automatic replenishment of materials;

[0100] (2) Submitting for inspection. Place the lower end of the first guide plate 33, which is inclined downward, below the slope rod 54, causing the slope rod 54, the cross rod 53, and the long screw rod 55 to be lifted. After the ultrasonic double-crystal straight probe 51 is lifted, it does not contact the crimping sleeve 70. At this time, there is no detection data. Meanwhile, the gear 44 is guided by two third guide plates 471 to engage with the toothed plate 47, driving the transmission shaft 41 to rotate. The transmission shaft 41 drives the material-taking rod 21 and the crimping sleeve 70 to rotate through the engagement of the driving bevel gear 42 and the driven bevel gear 43;

[0101] (3) Measuring the point spiral thickness. When the crimping sleeve 70 advances, the slope rod 54 slides along the upper edge of the intermittent lifting rod 35. Under the action of its own gravity, when the slope rod 54 passes through the slope groove 351 and slides downward, the ultrasonic double-crystal straight probe 51 descends at this time, and the probe head of the ultrasonic double-crystal straight probe 51 abuts against the crimping sleeve 70. Through the transmission cooperation between the transmission shaft 41 and the material-taking rod 21, during the process of the ultrasonic double-crystal straight probe 51 being in contact with and detecting the crimping sleeve 70, the crimping sleeve 70 advances linearly and rotates. And when the ultrasonic double-crystal straight probe 51 lifts and descends intermittently, at this time, point spiral sampling thickness detection can be performed on the crimping sleeve 70.

[0102] Linear spiral detection;

[0103] First, remove the wing nut 37 from the bolt 36 by rotating it counterclockwise, and then remove the intermittent lifting rod 35 from the cross bar 32. Subsequently, the chain plate conveyor 10 is powered on and runs, and the driving motor 14 drives the sprocket shaft 13 to rotate at a constant speed. The sprocket shaft 13 drives the conveying chain plate 11 to advance counterclockwise at a constant speed under the action of the sprocket and the chain. And by adjusting the output speed of the driving motor 14, the advancing speed of the conveying chain plate 11 is realized, thereby adjusting the pitch in the state of linear spiral detection. And the slower the advancing speed of the conveying chain plate 11, the smaller the pitch and the more comprehensive the measurement data;

[0104] Repeat the material-taking and submitting-for-inspection actions of the point spiral detection. When the intermittent lifting rod 35 is suspended above the cross bar 32, the ultrasonic double-crystal straight probe 51 is always abutted against the outer surface of the crimping sleeve 70 at this time. Then, when the material-taking rod 21 and the crimping sleeve 70 on the material-taking rod 21 advance and rotate, the ultrasonic double-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 an electromagnetic pulse through the probe, generating a changing magnetic field. This magnetic field induces eddy currents in the crimp sleeve 70. The change in the eddy currents generates ultrasonic waves, which propagate inside the crimp sleeve 70 and are reflected back at the other interface of the crimp sleeve 70 and received by the probe. By analyzing the received ultrasonic signal, the thickness of the crimp sleeve 70 can be accurately calculated, and the thickness data is displayed on the display 52. If the detected data is within the qualified threshold, it is a qualified product; otherwise, it is an unqualified product. Finally, the already detected crimp sleeve 70 is removed from the material taking rod 21 and classified.

[0106] The above is only the preferred specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A cable crimp sleeve measuring device, comprising a chain conveyor (10), wherein the chain conveyor (10) comprises a plurality of conveying chain plates (11) and a frame plate (12), characterized in that: Also includes: A material storage assembly (60) having an opening at the bottom and used for storing the crimping sleeve (70), wherein the material storage assembly (60) is fixedly mounted on one end of the chain conveyor (10); A material taking mechanism (20) mounted on the conveying chain plate (11), the material taking mechanism (20) comprising a rotatable material taking rod (21) for inserting the crimping sleeve (70) from the material storage assembly (60), the material storage assembly (60) comprising a pressing plate (63) for inserting the crimping sleeve (70) into the material taking rod (21); A material picking rod transmission mechanism (40), the material picking rod transmission mechanism (40) comprising a transmission shaft (41) for driving the material picking rod (21) to rotate; A point-line detection switching assembly (30), the point-line detection switching assembly (30) comprising a detachable intermittent lifting rod (35); The ultrasonic thickness measuring mechanism (50) comprises an ultrasonic dual-crystal straight probe (51) that can be raised and lowered. The ultrasonic dual-crystal straight probe (51) can be disassembled and assembled through an intermittent lifting rod (35) to implement linear spiral ultrasonic thickness detection or point spiral ultrasonic thickness detection of the ultrasonic dual-crystal straight probe (51).

2. A cable crimp sleeve measuring device according to claim 1, characterized in that: The material storage assembly (60) further comprises: a hopper (61), a material guide tube (62) penetratingly connected to the bottom of the hopper (61), a discharge port (621) being provided at the lower end of the material guide tube (62), an open port (622) being provided at the lower end of the material guide tube (62), a crimping sleeve (70) axially slidingly discharges material through the discharge port (621), a material pressing plate (63) being hinged to the upper edge of the discharge port (621) by a hinge, a positioning shaft (64) being fixed to one side of the material guide tube (62) close to the discharge port (621), a torsion spring (65) being fixed to the positioning shaft (64), and a pressure foot of the torsion spring (65) pressing on the material pressing plate (63).

3. A cable crimp sleeve measuring device according to claim 1, characterized in that: A bearing seat (22) is fixed on the conveying chain plate (11), and the material taking rod (21) is rotatably connected to the bearing seat (22) via a bearing. A pad (23) is fixed on one side of the bearing seat (22).

4. A cable crimp sleeve measuring device according to claim 1, characterized in that: The material taking rod (21) comprises a thin rod having an outer diameter smaller than that of the crimping sleeve (70), and the material taking rod (21) further comprises a support column (24), both ends of the thin rod are coaxially fixed with the support columns (24), and a conical head (241) is coaxially fixed to the front end of the support column (24).

5. A cable crimp sleeve measuring device according to claim 4, characterized in that: The pressing plate (63) is provided with a U-shaped opening (631) opening downwards, and the inner width of the U-shaped opening (631) is adapted to the support column (24).

6. A cable crimp sleeve measuring device according to claim 1, characterized in that: The point-line detection switching assembly (30) further comprises a plurality of support vertical rods (31), a cross rod (32) being vertically fixed between the support vertical rods (31) on the same side, the cross rod (32) being symmetrically provided with mounting holes (321) adapted to the bolts (36), a first guide plate (33) being fixed to one end of the cross rod (32), a lifting slope block (34) being fixed to the other end of the cross rod (32), and a plurality of slope grooves (351) being provided on one side of the intermittent lifting rod (35); The ultrasonic thickness measuring mechanism (50) further comprises: a cross rod (53), long screw rods (55) being fixed at both ends of the cross rod (53), a slope rod (54) being symmetrically fixed on one side of the cross rod (53) close to the long screw rod (55), and a limit ring (551) being fixed on the long screw rod (55) disposed above the guide seat (121).

7. A cable crimp sleeve measuring device according to claim 6, characterized in that: The long screw rod (55) is threadedly connected with an adjusting nut (56), and a spring (57) is sleeved on the long screw rod (55), and the spring (57) is placed between the adjusting nut (56) and the guide seat (121).

8. A cable crimp sleeve measuring device according to claim 1, characterized in that: A driving bevel gear (42) is coaxially fixed to one end of the transmission shaft (41), and a gear (44) is coaxially fixed to the other end. A driven bevel gear (43) meshing with the driving bevel gear (42) is coaxially fixed to the material taking rod (21). A toothed plate (47) is fixed to the inner side of the frame plate (12) via a plurality of sets of fixing frames (45). The toothed plate (47) is meshingly matched with the gear (44). A chain plate support plate (46) is fixed to the fixing frame (45).

9. A cable crimp sleeve measuring device according to claim 8, characterized in that: The inner side of the frame plate (12) is also fixedly connected to a limiting strip plate (48) via a fixing frame (45); the limiting strip plate (48) is parallel to the tooth plate (47) and forms a passage for the gear (44) to travel; a third guide plate (471) inclined outwardly is fixed to the same side ends of the limiting strip plate (48) and the tooth plate (47); and a second guide plate (461) inclined downwardly is fixed to one end of the chain plate support plate (46) close to the third guide plate (471).

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