Light safety hook production testing device

Abstract

The invention relates to the technical field of testing, in particular to a light safety hook production testing device which comprises a rack, a first driving motor is fixedly installed at the bottom of the rack, and the end, movably penetrating through the rack, of an output shaft end of the first driving motor is fixedly connected with a main bevel gear. A plurality of testing units which are annularly and uniformly distributed around the axis of the main bevel gear are mounted at the top of the rack, and each testing unit is provided with a protection mechanism, an adjusting part used for adjusting the position state of the safety hook and a discharging control assembly. The device can be used for testing the tensile property of different types of safety hooks, the purposes of one machine with multiple purposes and improving the testing efficiency are achieved, meanwhile, leveling and deviation rectifying treatment can be carried out on a target safety hook, the target safety hook is tested in a reset state, an unlocked locking arm sleeve is automatically tightened, and the testing efficiency is improved. And the test precision and the test quality are improved.

Description

Technical Field

[0001] The invention relates to the technical field of testing, in particular to a light safety hook production testing device. Background Art

[0002] The carabiner, also known as the "master lock", is the most commonly used connection tool for connecting ropes, flat belts to anchor points, equipment, etc. It ensures the firmness and stability of the connection, thereby avoiding accidental detachment and accidents. It is widely used in construction operations, fire rescue, outdoor sports, and aerial operations.

[0003] The prior art discloses a Chinese patent with publication number CN 107843419 B: a lock buckle tensile testing machine, and discloses an electric cylinder, a tensile head and a workpiece fixture. By installing three tensile gauges on the tensile head, a comprehensive test is performed on different directions of the lock clamped by the workpiece fixture to ensure the integrity of the lock buckle quality.

[0004] However, the above-mentioned prior art still has certain defects, that is, during use, only a single lock buckle can be subjected to a tensile test at a time, and during the test process, the target lock buckle needs to be clamped before the tensile test can be performed, which is cumbersome to operate. Summary of the invention

[0005] The object of the present invention is to provide a light safety hook production and testing device to solve the problems raised in the above background technology.

[0006] The purpose of the present invention can be achieved through the following technical solutions: A light safety hook production and testing device comprises a frame, a driving motor 1 is fixedly installed at the bottom of the frame, an output shaft end of the driving motor 1 movably passes through one end of the frame and is fixedly connected to a main bevel gear, and a plurality of test units are evenly distributed in a ring shape around the axis of the main bevel gear on the top of the frame; The test unit comprises a rear side frame and a front side frame fixed on the top of the frame, a rotating shaft is installed between the rear side frame and the front side frame in a through-type rotation, and oblique guide rods are fixedly connected at positions on both sides of the rotating shaft between the rear side frame and the front side frame, and a secondary bevel gear meshing with the main bevel gear is fixedly connected to one end of the rotating shaft close to the main bevel gear; A movable expansion component and a testing part installed on the movable expansion component for performing a tensile strength test on the safety hook are arranged between the rear side frame and the front side frame.

[0007] In a preferred embodiment, the movable expansion assembly includes a thread tapped on the outside of the rotating shaft and located between the rear side frame and the front side frame, the main slide is sleeved with the thread on the outside of the rotating shaft, the two oblique guide rods are movably sleeved with auxiliary slides on the outside, and straight guide rods are fixedly connected on both sides of the main slide, and the opposite ends of the two straight guide rods are movably inserted through the corresponding auxiliary slides; A guide channel for guiding the main slide and the auxiliary slide to perform linear motion is fixedly provided on the top of the frame. A test box and a bracket are fixedly provided on the top of the main slide and the auxiliary slide respectively. The test part is arranged between the test box and the bracket.

[0008] In a preferred embodiment, the test part includes column cavities opened on two brackets, and a pull rod is provided between the two brackets and the test box, and the two ends of the pull rod extend to the test box and the corresponding column cavity respectively, and the two ends of the pull rod are respectively fixed with a circular plate slidably connected to the inside of the column cavity and an end plate movably connected to the inside of the test box; A pressure sensor is fixedly installed at one opposite end of the inner cavity of the two column cavities, and an L-shaped hook rod is fixedly connected to the opposite side of the two end plates. Arc-shaped grooves are provided on the outer sides of the two L-shaped hook rods, and through grooves are opened on one side of the two end plates. Guide columns that are movable and penetrate the corresponding through grooves are fixedly connected on both sides of the inner cavity of the test box.

[0009] In a preferred embodiment, a protective mechanism is provided on the top of the test box, and the protective mechanism includes a cover plate hingedly mounted on one end of the top of the test box, a fastening assembly is provided between the other end of the top of the test box and the non-hinged end of the cover plate, and a stop strip is fixedly provided on the outside of the test box at a position corresponding to the hinged end of the cover plate.

[0010] In a preferred embodiment, the fastening assembly includes a notch formed on the cover plate and an L-shaped through slot formed on the test box and facing the notch, a cross bar is fixedly arranged inside the L-shaped through slot, and clamping strips are movably sleeved on the outer sides of both ends of the cross bar, and a spring 1 sleeved on the outside of the cross bar is fixedly connected between the two clamping strips; The fastening assembly also includes a column slot opened on the top of the test box, and pads are movably sleeved inside the two column slots, and a second spring is fixedly connected between the bottom end surface of the column slot inner cavity and the corresponding pad.

[0011] In a preferred embodiment, the test box is further provided with an adjustment unit for adjusting the position state of the safety hook, the adjustment unit comprising a cylinder 1 fixedly mounted at both ends of the outer side of the test box and an image sensor fixed on the inner side of the cover plate, the telescopic ends of the two cylinders 1 are fixedly connected with push seats, and the two push seats are both located inside the test box; Two rectangular columns are fixedly arranged on the top of the two push seats, an L-shaped square column is fixedly arranged on the top of each rectangular column, and a U-shaped rod is fixedly connected between the corresponding L-shaped square columns and the rectangular columns.

[0012] In a preferred embodiment, the tops of the two push seats are each provided with a deviation correction assembly, the deviation correction assembly comprising a movable block arranged between the corresponding L-shaped square column and the rectangular column, a shaft rod is rotatably installed between the two movable blocks arranged opposite to each other, a driving motor 2 for driving the corresponding shaft rod to rotate is fixedly installed on the outer side of one of the movable blocks, and a rubber roller is fixedly sleeved on the middle part of the outer side of the shaft rod; The deviation correction assembly also includes an arc-shaped square column fixed between the top end surface and the bottom end surface of two movable blocks arranged oppositely, and arc grooves are provided on the opposite sides of the corresponding L-shaped square column and the rectangular square column, and the arc-shaped square column is slidably installed in the arc groove on the corresponding side; An annular cylinder is fixedly connected between two L-shaped square columns arranged opposite to each other, a vertical rod is movably inserted inside the annular cylinder, a gear ring which fits the upper end surface of the annular cylinder is fixedly sleeved on the outer side of the vertical rod, a disc is fixedly provided at the bottom end of the vertical rod, two L-shaped connecting rods are fixedly connected to the outer side of the disc, the ends of the two L-shaped connecting rods are fixedly connected to rings movably sleeved on the outer side of the shaft rod, an L-shaped frame is fixedly provided on the top of one of the L-shaped square columns, a spur gear meshing with the gear ring is rotatably installed on the inner side of the L-shaped frame, and a driving motor three for driving the spur gear to rotate is fixedly provided on the top of the L-shaped frame.

[0013] In a preferred embodiment, a lifting assembly is also provided on the top of the two push seats, and the lifting assembly includes a sink groove opened on the top of the push seat, and a second cylinder is fixedly installed inside the sink groove, and the telescopic end of the second cylinder is fixedly connected to a lifting plate that fits the upper end surface of the sink groove.

[0014] In a preferred embodiment, a material discharge control assembly is further provided at the bottom end of the test box, and the material discharge control assembly includes an L-shaped partition fixed to the top of the rear side frame and a material receiving table fixedly installed on the top of the front side frame. One end of the L-shaped partition movably passes through the test box, and a leakage groove is provided on the top of one end of the L-shaped partition passing through the test box, and the leakage groove is opposite to the material receiving table.

[0015] In a preferred embodiment, the material receiving table includes two mounting blocks fixed on the top of the front side frame, an inclined platform that fits with the upper end surface of the front side frame is provided between the two mounting blocks, and ear blocks facing the mounting blocks are fixed on both sides of one end of the inclined platform close to the test box, and a straight rod is fixed on one side of the two ear blocks, one end of the straight rod movably passes through the corresponding mounting block, and a connecting spring is sleeved on the outer side of the straight rod to fix the corresponding ear block and the mounting block.

[0016] Beneficial effects of the present invention: 1. The present invention can not only realize the tensile test of multiple safety hook samples, but also realize the tensile performance test of different types of safety hooks, so as to achieve the purpose of one machine with multiple uses and improve the test efficiency; 2. The present invention can realize the leveling and deviation correction of the target safety hook, so that the target safety hook can be tested in a correct state. At the same time, the unlocked locking arm sleeve can be automatically tightened to improve the test accuracy and test quality; 3. The present invention can effectively prevent the broken safety hook from flying out of the test area during the tensile test, and can also automatically guide the broken safety hook to be discharged for collection and reuse. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative work. Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the test unit of the present invention from a first viewing angle; Figure 3 is a schematic diagram of the structure of the test unit of the present invention from a second viewing angle; Figure 4 This is a schematic diagram of the structure of the test unit of the present invention in an open cover state; Figure 5 is an overall top view of the test unit of the present invention; Figure 6 The present invention Figure 5 Schematic diagram of the AA section structure; Figure 7 The present invention Figure 5 Schematic diagram of the cross-section structure along the BB axis; Figure 8 The present invention Figure 5 Schematic diagram of the CC section structure; Fig. 9 The present invention Figure 6 A' part of the structure is enlarged; Fig.10 is a schematic diagram of the first viewing angle structure of the adjustment part of the present invention; Fig.11 is a schematic diagram of the second viewing angle structure of the adjustment part of the present invention; Fig.12 It is a cross-sectional schematic diagram of the adjustment part of the present invention.

[0018] The reference numerals in the figure are as follows: 1, frame; 2, main bevel gear; 3, test unit; 31, rear side frame; 32, front side frame; 33, rotating shaft; 34, oblique guide rod; 35, auxiliary bevel gear; 36, thread; 37, main slide; 38, auxiliary slide; 39, test box; 310, bracket; 311, straight guide rod; 312, guide channel; 4, cover plate; 5, stopper strip; 6, fastening assembly; 61, L-shaped through groove; 62, column groove; 63, cross bar; 64, clamping strip; 65, spring one; 66, spring two; 67, pad; 7, receiving table; 8, test part; 81, column cavity; 82, pull rod; 83, round Plate; 84, end plate; 85, L-shaped hook rod; 86, guide column; 87, pressure sensor; 9, adjustment part; 91, cylinder one; 92, push seat; 93, straight square column; 94, L-shaped square column; 95, U-shaped rod; 96, movable block; 97, shaft rod; 98, rubber roller; 99, arc-shaped square column; 910, vertical rod; 911, gear ring; 912, disc; 913, ring cylinder; 914, spur gear; 915, L-shaped frame; 916, L-shaped connecting rod; 917, sleeve ring; 918, sink; 919, cylinder two; 920, lifting plate; 10, L-shaped partition; 11, leakage groove; 12, image sensor. DETAILED DESCRIPTION

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

[0020] The production test device of the present invention belongs to a type of equipment for testing structural components, and is mainly used for testing the tensile performance of different types of safety hooks, specifically including pear-shaped safety hooks, O-shaped safety hooks, and D-shaped safety hooks.

[0021] Example 1: Refer to the attached specification Figure 1-Figure 4 The present invention provides a light safety hook production and testing device, comprising a frame 1, a driving motor 1 is fixedly installed at the bottom of the frame 1, an output shaft end of the driving motor 1 movably passes through one end of the frame 1 and is fixedly connected to a main bevel gear 2, and a plurality of test units 3 are evenly distributed in a ring shape around the axis of the main bevel gear 2 and are installed on the top of the frame 1; The test unit 3 includes a rear side frame 31 and a front side frame 32 fixed on the top of the frame 1, and a rotating shaft 33 is installed between the rear side frame 31 and the front side frame 32 in a through-type rotation, wherein the outer sides of both ends of the rotating shaft 33 are fixedly sleeved with limit rings respectively fitted with the two sides of the rear side frame 31 and the front side frame 32 to ensure the stable transmission of the rotating shaft 33, and the positions between the rear side frame 31 and the front side frame 32 on both sides of the rotating shaft 33 are fixedly connected with oblique guide rods 34, and one end of the rotating shaft 33 close to the main bevel gear 2 is fixedly connected with a secondary bevel gear 35 meshing with the main bevel gear 2, and a movable expansion component and a test part 8 installed on the movable expansion component for performing a tensile strength test on the safety hook are provided between the rear side frame 31 and the front side frame 32; The movable expansion assembly includes a thread 36 tapped on the outside of the rotating shaft 33 and located between the rear side frame 31 and the front side frame 32. The main slide 37 is threadedly sleeved on the outside of the rotating shaft 33. The two oblique guide rods 34 are movably sleeved on the outside with auxiliary slides 38. Straight guide rods 311 are fixedly connected on both sides of the main slide 37. The opposite ends of the two straight guide rods 311 movably penetrate the corresponding auxiliary slides 38. A guide groove 312 for guiding the main slide 37 and the auxiliary slide 38 to perform linear motion is fixedly provided on the top of the frame 1. The guide groove 312 is composed of two parallel side plates, which are used to limit the bottom ends of the main slide 37 and the auxiliary slide 38. A test box 39 and a bracket 310 are fixedly provided on the top of the main slide 37 and the auxiliary slide 38, respectively. The testing part 8 is arranged between the test box 39 and the bracket 310.

[0022] It should be noted that before the test is carried out, the test box 39 is located at a position (i.e., the initial position) of the rotating shaft 33 close to one end of the main bevel gear 2. In the process of conducting a tensile performance test on the safety hook sample to be tested (hereinafter referred to as the "target safety hook"), the target sample is placed in the test box 39 on each test unit 3 in turn, and the drive motor 1 is started to drive the main bevel gear 2 to rotate, and the rotating main bevel gear 2 is used to synchronously drive the auxiliary bevel gears 35 on multiple test units 3 to rotate, thereby driving the corresponding rotating shaft 33 to rotate. The rotating shaft 33 rotates, and during the rotation process, the straight guide rod 311 penetrating the auxiliary slide 38 and the guide groove 312 corresponding to the main slide 37 are used to limit the main slide 37, so that the main slide 37 can only move linearly along the axial direction of the straight guide rod 311 under the rotation of the corresponding auxiliary bevel gear 35. At the same time, the two auxiliary slides 38 will perform flaring linear motion along the linear motion of the main slide 37 under the guidance of the corresponding oblique guide rods 34 and the guide groove 312, thereby driving the test unit 8 to perform tensile test on the target safety hook.

[0023] Specifically, Figure 3 , Figure 5 and Figure 7As shown, the test part 8 includes a column cavity 81 opened on two brackets 310, and a pull rod 82 is provided between the two brackets 310 and the test box 39. The two ends of the pull rod 82 extend to the test box 39 and the corresponding column cavity 81, and the two ends of the pull rod 82 are respectively fixed with a circular plate 83 slidably connected to the column cavity 81 and an end plate 84 movably connected to the test box 39. Pressure sensors 87 are fixedly installed at opposite ends of the inner cavities of the two column cavities 81, and L-shaped hook rods 85 are fixedly connected to opposite sides of the two end plates 84. Arc grooves are opened on the outer sides of the two L-shaped hook rods 85, and the arc grooves can be used as references for the test sites of the target safety hooks. Through grooves are opened on one side of the two end plates 84, and guide columns 86 that are movable and penetrated in the corresponding through grooves are fixedly connected on both sides of the inner cavity of the test box 39. The guide columns 86 always remain in the state of being penetrated in the corresponding through grooves during the entire test process. The opposite sides of the two guide columns 86 are both set as arc structures to guide the target workpiece placed in the test box 39 to fall quickly onto the test station, and the lower end surface of the guide column 86 is horizontally coplanar with the upper end surface of the L-shaped hook rod 85 at the corresponding position. During the tensile test, the guide column 86 can be used to block the upper end of the corresponding L-shaped hook rod 85, so that the end of the L-shaped hook rod 85 away from the corresponding end plate 84 will not swing in the direction away from the corresponding end plate 84 during the tensile test, thereby improving the service life of the L-shaped hook rod 85.

[0024] It should be noted that, during the tensile test of the target safety hook, after the target safety hook is placed inside the test box 39, the ends of the two L-shaped hook rods 85 away from the corresponding end plate 84 are passed through the inner circle of the target safety hook, that is, under the guidance of the arc structure on the two guide pillars 86, the target safety hook is allowed to fall from the gap between the two groups of L-shaped hook rods 85 and the corresponding guide pillars 86. After the placement of the target safety hook is completed, as the two auxiliary slides 38 perform expansion-type linear motion under the drive of the main slide 37, the two pull rods 82 will move away from each other from the initial state, thereby pulling the corresponding end plate 84 to perform linear motion along the guide pillar 86 at the position, and driving the two L-shaped hook rods 85 to move to a state where their upper end faces are completely blocked by the lower end faces of the corresponding guide pillars 86; When the two pull rods 82 continue to move in opposite directions until the target safety hook is fully tightened by the two L-shaped hook rods 85 (in this state, the end plate 84 and the corresponding side of the inner cavity of the test box 39 are still set apart), as the two sub-slides 38 continue to perform flaring linear motion, the distance between the two circular plates 83 and the corresponding pressure sensors 87 will gradually decrease until the circular plates 83 and the corresponding pressure sensors 87 come into contact. Then, when the two sub-slides 38 continue to perform flaring linear motion, the circular plates 83 will apply pressure to the corresponding pressure sensors 87 to test the tensile strength of the target safety hook. During this process, before the target safety hook breaks, the pressure data detected by the pressure sensor 87 will continue to rise. Once the target safety hook breaks, the pressure data detected by the pressure sensor 87 will not continue to rise, and may even continue to decrease. Therefore, the peak pressure detected by the pressure sensor 87 can be used to feedback the tensile strength of the target safety hook.

[0025] Specifically, Figure 3-Figure 6 and Fig. 9 As shown, a protective mechanism is provided on the top of the test box 39, which includes a cover plate 4 hingedly mounted on one end of the top of the test box 39, a fastening assembly 6 is provided between the other end of the top of the test box 39 and the non-hinged end of the cover plate 4, and a stopper strip 5 is fixedly provided at the position of the hinged end of the cover plate 4 on the outside of the test box 39. The setting of the stopper strip 5 can make the cover plate 4 be flipped open to 120°, which can prevent the flipped cover plate 4 from being easily automatically closed, and can also prevent the cover plate 4 from being completely attached to the outside of the test box 39 after being flipped open, so as to facilitate the closing operation after loading. The fastening assembly 6 includes a notch formed on the cover plate 4 and an L-shaped through slot 61 formed on the test box 39 and facing the notch. A cross bar 63 is fixedly arranged inside the L-shaped through slot 61. A clamping strip 64 is movably sleeved on the outer sides of both ends of the cross bar 63. A spring 65 sleeved on the outside of the cross bar 63 is fixedly connected between the two clamping strips 64. The clamping strip 64 is composed of an L-shaped strip passing through the L-shaped through slot 61 and a triangular block fixed at one end of the L-shaped strip. When the two clamping strips 64 are in the position as shown in FIG. Fig. 9 In the state shown, the spring 1 65 is still in a compressed state, which can effectively improve the fastening effect of the cover plate 4 in the closed state. The fastening assembly 6 also includes a column groove 62 opened on the top of the test box 39. The insides of the two column grooves 62 are movably sleeved with a pad 67. The spring 2 66 is fixedly connected between the bottom end surface of the inner cavity of the column groove 62 and the corresponding pad 67. When the spring 2 66 is in the state shown, the spring 2 65 is still in a compressed state, which can effectively improve the fastening effect of the cover plate 4 in the closed state. The fastening assembly 6 also includes a column groove 62 opened on the top of the test box 39. The insides of the two column grooves 62 are movably sleeved with a pad 67. The spring 2 66 is fixedly connected between the bottom end surface of the inner cavity of the column groove 62 and the corresponding pad 6 Fig. 9 In the state shown, the second spring 66 is also in a compressed state, which is beneficial for lifting the cover plate 4 upward to a certain angle by using the bounced pad 67 when releasing the clamping strip 64 from the cover plate 4, so as to facilitate quick opening of the cover and replenishing the target safety hook.

[0026] It should be noted that, according to the present invention, after placing the target safety hook on the test station inside the test box 39, the cover plate 4 can be snapped onto the top of the test box 39, and the snapping state of the cover plate 4 can be limited by the clamping strip 64, which can effectively prevent the broken safety hook from flying out of the test box 39 during the tensile test, thereby avoiding injuries or inconvenience in collecting the broken safety hooks.

[0027] Specifically, Figure 3 , Figure 5 and Figure 8 As shown, a material discharging control assembly is also provided at the bottom of the test box 39, and the material discharging control assembly includes an L-shaped partition 10 fixed on the top of the rear side frame 31 and a material receiving platform 7 fixedly installed on the top of the front side frame 32. One end of the L-shaped partition 10 movably penetrates the test box 39, and a leakage groove 11 is provided on the top of one end of the L-shaped partition 10 penetrating the test box 39, and the leakage groove 11 is directly opposite to the material receiving platform 7, wherein the upper surface of the L-shaped partition 10 is in contact with the outer side of the lower end of the L-shaped hook rod 85, and limiting strips can be fixedly provided on the upper and lower surfaces of the L-shaped partition 10 inside the test box 39, and the limited L-shaped partition 10 can be used to support the L-shaped hook rod 85, and cooperate with the bottom end of the guide column 86 to block the upper end surface of the L-shaped hook rod 85 to further improve the tensile performance of the L-shaped hook rod 85; The material receiving table 7 includes two mounting blocks fixed on the top of the front side frame 32, and an inclined table is provided between the two mounting blocks to fit the upper end surface of the front side frame 32, wherein the upper end surface of the inclined table can be set to a concave arc surface, and a collection box for collecting broken safety hooks can be added on the outer side of the front side frame 32, and the concave arc surface on the inclined table can be used to guide the safety hooks that have completed the test fracture to fall into the collection box, so as to facilitate subsequent centralized recycling. Ear blocks facing the mounting blocks are fixed on both sides of the end of the inclined table close to the test box 39, and straight rods are fixed on one side of the two ear blocks, one end of the straight rod movably passes through the corresponding mounting block, and a connecting spring fixedly connecting the corresponding ear block and the mounting block is sleeved on the outer side of the straight rod. In addition, a stop plate can be fixed on the end of the straight rod away from the corresponding ear block, which can effectively prevent the straight rod from completely detaching from the mounting block under the action of the corresponding connecting spring.

[0028] It should be noted that during the tensile performance test of the target safety hook, as the test proceeds, the test box 39 will slide on the outside of the L-shaped partition 10. At the same time, the main slide 37 that moves synchronously with the test box 39 will push the ramp to move along the axis of the straight rod and compress the connecting spring on the outside of the straight rod to store energy. In this state, the high end of the ramp is located directly below the test box 39. When the target safety hook breaks during the test, the broken safety hook will pass through the leakage groove 11 and fall to the area where the concave arc surface on the ramp is located, and then slide along the ramp to the inside of the collection box for automatic collection.

[0029] Example 2: Refer to the attached specification Figure 5 , Figure 8 and Figure 10-12 The present invention also provides a light safety hook production test device, wherein the test box 39 is also equipped with an adjustment unit 9 for adjusting the position state of the safety hook, and the adjustment unit 9 includes a cylinder 91 fixedly installed at both ends of the outer side of the test box 39 and an image sensor 12 fixed on the inner side of the cover plate 4 for detecting the position state of the target safety hook, and the telescopic ends of the two cylinders 91 are fixedly connected with a push seat 92 that fits the upper surface of the L-shaped partition 10 for movement, wherein the opposite sides of the two push seats 92 are both set as inclined surfaces, and one is set as T-shaped structure, and the other is set as a U-shaped structure, and the two can just complete the opposite plug-in. In addition, the thickness of the push seat 92 is greater than the diameter of the L-shaped hook rod 85, that is, the upper end surface of the push seat 92 is higher than the horizontal plane where the highest point of the horizontal section of the L-shaped hook rod 85 is located. The two push seats 92 are both located inside the test box 39. Two rectangular columns 93 are fixed on the top of the two push seats 92, and an L-shaped square column 94 is fixed on the top of each rectangular column 93. A U-shaped rod 95 is fixedly connected between the corresponding L-shaped square column 94 and the rectangular column 93; The tops of the two push seats 92 are each provided with a deviation correction component, which includes a movable block 96 disposed between the corresponding L-shaped square column 94 and the rectangular column 93, a shaft 97 is rotatably installed between the two relatively disposed movable blocks 96, a driving motor 2 for driving the corresponding shaft 97 to rotate is fixedly installed on the outer side of one of the movable blocks 96, a rubber roller 98 is fixedly sleeved on the middle part of the outer side of the shaft 97, and the deviation correction component also includes an arc-shaped square column 99 fixed between the top end surface and the bottom end surface of the two relatively disposed movable blocks 96, an arc groove is provided on the opposite sides of the corresponding L-shaped square column 94 and the rectangular column 93, and the arc-shaped square column 99 is slidably installed inside the arc groove on the corresponding side, and the arc groove can be used in conjunction with the arc-shaped square column 99 to form an arc motion trajectory for the movable block 96 to move, so as to cooperate with the position adjustment of safety hooks of different styles (such as pear-shaped, D-shaped, O-shaped, etc.); An annular cylinder 913 is fixedly connected between two L-shaped square columns 94 arranged opposite to each other, a vertical rod 910 is movably inserted inside the annular cylinder 913, a gear ring 911 which fits the upper end surface of the annular cylinder 913 is fixedly sleeved on the outer side of the vertical rod 910, a disc 912 is fixedly provided at the bottom end of the vertical rod 910, two L-shaped connecting rods 916 are fixedly connected to the outer side of the disc 912, and the ends of the two L-shaped connecting rods 916 are fixedly connected to a sleeve ring 917 which is movably sleeved on the outer side of the shaft 97, an L-shaped frame 915 is fixedly provided on the top of one of the L-shaped square columns 94, a spur gear 914 which meshes with the gear ring 911 is rotatably installed on the inner side of the L-shaped frame 915, and a driving motor 3 which drives the spur gear 914 to rotate is fixedly provided on the top of the L-shaped frame 915; A lifting assembly is also provided on the top of the two push seats 92, and the lifting assembly includes a sink 918 opened on the top of the push seat 92, and a cylinder 919 is fixedly installed inside the sink 918. The telescopic end of the cylinder 919 is fixedly connected to a lifting plate 920 that fits the upper end surface of the sink 918, wherein the lifting plate 920 is arranged as a right-angled trapezoidal structure, and the inclined surface on the lifting plate 920 in the initial non-lifted state is coplanar with the inclined surface on the corresponding push seat 92.

[0030] It should be noted that, in the process of adjusting the position state of the target safety hook placed in the test box 39, after the target safety hook is placed on the test station inside the test box 39, since the surface of the L-shaped hook rod 85 is an arc surface, after the target safety hook is placed on the test station, the target safety hook will tilt to one side and rest on the upper surface of the L-shaped partition 10. At this time, the two push seats 92 will be pushed towards each other by controlling the two cylinders 91, so that the tip of the push seat 92 close to the tilt direction of the target safety hook during movement is inserted under the target safety hook, and as the push seat 92 is pushed forward, the end of the target safety hook that is tilted downward moves along the corresponding push seat 9 2 is gradually lifted. During this process, since there is no obstruction at the end of the target safety hook that is tilted upward, the tip of the push seat 92 close to the tilting direction of the target safety hook is inserted under the target safety hook, which will push the target safety hook as a whole to move in the direction of the other push seat 92, and may even cause the target safety hook to tilt in the direction of the other push seat 92. As the two push seats 92 move toward each other, the target safety hook will directly overlap between the inclined surfaces on the two push seats 92, and move upward along the inclined surfaces of the push seats 92, and finally overlap between the upper end surfaces of the two lifting plates 920, completing the leveling process of the target safety hook placed on the test station; When the leveling process of the target safety hook is completed, the cylinders 2 919 on the two push seats 92 will synchronously push the lifting plate 920 at the corresponding position to move upward to a position where the horizontal plane where the axis of the rubber roller 98 is located is flush with the horizontal center plane of the target safety hook after leveling, and the position is planned to be flush with the horizontal center plane of the arc groove on the L-shaped hook rod 85. At this time, if the image sensor 12 detects that the state of the target safety hook is an inclined state (i.e., deviating from the force application position of the correct tensile test), one of the cylinders 1 91 will be controlled to push the push seat 92 at the position to approach the target safety hook, so that the rubber roller 98 on it contacts the target safety hook, and then the drive motor 3 is started to drive the spur gear 914 to rotate, and drive the ring gear 911 to rotate, so that the rotating ring gear 911 is used to drive the shaft rod 97 to rotate, and the rubber roller 98 that rotates synchronously with the shaft rod 97 is used to move the target safety hook to swing, so as to correct the deviation of the target safety hook in the inclined state; It should be noted that, in the process of correcting the deviation, it is achieved by multiple deflections of the rubber roller 98, that is, after completing one deflection, the driving motor three stops working, and the corresponding push seat 92 will also retreat under the action of the cylinder one 91. At the same time, the deflected rubber roller 98 will be reset, and then the push seat 92 will continue to approach the target safety hook, so that the reset rubber roller 98 on it will contact the target safety hook again, and the driving motor three will be started again to drive the rubber roller 98 to deflect, and this will be repeated many times until the image sensor 12 detects that the tilt state of the target safety hook is completely corrected. In addition, in the process of correcting the deviation, two push seats 92 can be used to perform the correction action alternately to prevent the target safety hook from leaving the upper end surface of one of the lifting plates 920 before the deviation correction is completed, resulting in the destruction of the leveling state, or even a more serious tilt state of the target safety hook; After the leveling and deviation correction of the target safety hook are completed, the main slide 37 and the auxiliary slide 38 can be controlled to move synchronously, so that the auxiliary slide 38 that performs the expansion-type linear motion controls the two L-shaped hook rods 85 to move in opposite directions, so that the tension application point of the target safety hook is inside the arc groove on the L-shaped hook rod 85 (that is, the target safety hook is in a tightened state after leveling and deviation correction). If the image sensor 12 detects that the locking arm sleeve on the target safety hook is in a completely locked state, the tensile test is directly performed. Otherwise, the movement of the auxiliary slide 38 will be paused, and the push seat 92 close to the locking arm sleeve on the target safety hook will be controlled to move in the direction of the L-shaped hook rod 85, so that the rubber roller 98 comes into contact with the locking arm sleeve, and then the drive motor 2 is started to drive the shaft 97 to rotate, and the locking arm sleeve is driven to rotate by the rubber roller 98 that rotates synchronously with the shaft 97 until the locking arm sleeve rotates to a completely locked state. Among them, in the process of tightening the locking arm sleeve, since the locking arm sleeves on different styles of safety hooks (such as pear-shaped, D-shaped, O-shaped, etc.) are at different angles, it is necessary to use a drive motor three to drive the rubber roller 98 to swing horizontally in advance, so that the rubber roller 98 swings to a state parallel to the locking arm sleeve, and then the locking arm sleeve can be tightened.

[0031] In the above technical scheme, the drive motor 1 mentioned above adopts a Y series AC motor; the drive motor 2 and the drive motor 3 mentioned above both adopt a stepper motor of model STEP-085-17; the pressure sensor 87 mentioned above adopts a U10M / 5KN force sensor; the image sensor 12 mentioned above adopts a CCD sensor; the cylinder 1 91 and the cylinder 2 919 mentioned above both adopt a single-acting cylinder of model DSA25N200.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A light safety hook production and testing device, comprising a frame (1), characterized in that: A driving motor 1 is fixedly mounted at the bottom of the frame (1); an output shaft end of the driving motor 1 movably passes through one end of the frame (1) and is fixedly connected to a main bevel gear (2); and a plurality of test units (3) are evenly distributed in a ring shape around the axis of the main bevel gear (2) and mounted on the top of the frame (1); The test unit (3) comprises a rear side frame (31) and a front side frame (32) fixed on the top of the frame (1); a rotating shaft (33) is rotatably installed between the rear side frame (31) and the front side frame (32); oblique guide rods (34) are fixedly connected to positions on both sides of the rotating shaft (33) between the rear side frame (31) and the front side frame (32); and a secondary bevel gear (35) meshing with the main bevel gear (2) is fixedly connected to one end of the rotating shaft (33) close to the main bevel gear (2); A movable expansion assembly and a testing portion (8) mounted on the movable expansion assembly and used for performing a tensile strength test on the safety hook are provided between the rear side frame (31) and the front side frame (32).

2. A light safety hook production and testing device according to claim 1, characterized in that: The movable expansion assembly comprises a thread (36) tapped on the outside of the rotating shaft (33) and located between the rear side frame (31) and the front side frame (32); a main slide (37) is sleeved on the outside of the rotating shaft (33) through the thread; auxiliary slides (38) are movably sleeved on the outsides of the two oblique guide rods (34); straight guide rods (311) are fixedly connected on both sides of the main slide (37); and opposite ends of the two straight guide rods (311) are movably inserted through the corresponding auxiliary slides (38); A guide channel (312) for guiding the main slide (37) and the auxiliary slide (38) to perform linear motion is fixedly provided on the top of the frame (1); a test box (39) and a bracket (310) are fixedly provided on the top of the main slide (37) and the auxiliary slide (38), respectively; and the test section (8) is arranged between the test box (39) and the bracket (310).

3. A light safety hook production and testing device according to claim 2, characterized in that: The test section (8) comprises a column cavity (81) opened on two brackets (310), a pull rod (82) is provided between the two brackets (310) and the test box (39), two ends of the pull rod (82) respectively extend into the test box (39) and the corresponding column cavity (81), and a circular plate (83) slidably connected to the inside of the column cavity (81) and an end plate (84) movably connected to the inside of the test box (39) are fixedly provided at both ends of the pull rod (82); Pressure sensors (87) are fixedly mounted on opposite ends of the inner cavities of the two column cavities (81); L-shaped hook rods (85) are fixedly connected to opposite sides of the two end plates (84); arc-shaped grooves are provided on the outer sides of the two L-shaped hook rods (85); through grooves are provided through one side of the two end plates (84); and guide columns (86) that are movably provided through the corresponding through grooves are fixedly connected to both sides of the inner cavity of the test box (39).

4. A light safety hook production and testing device according to claim 2, characterized in that: The top of the test box (39) is provided with a protective mechanism, the protective mechanism comprising a cover plate (4) hingedly mounted on one end of the top of the test box (39), a fastening assembly (6) is provided between the other end of the top of the test box (39) and the non-hinged end of the cover plate (4), and a stopper strip (5) is fixedly provided on the outside of the test box (39) at a position corresponding to the hinged end of the cover plate (4).

5. A light safety hook production and testing device according to claim 4, characterized in that: The fastening assembly (6) comprises a notch formed on the cover plate (4) and an L-shaped through slot (61) formed on the test box (39) and facing the notch. A cross bar (63) is fixedly provided inside the L-shaped through slot (61). Both ends of the cross bar (63) are movably sleeved with clamping strips (64) on the outside. A spring (65) sleeved on the outside of the cross bar (63) is fixedly connected between the two clamping strips (64). The fastening assembly (6) further comprises a column slot (62) formed on the top of the test box (39), a backing plate (67) being movably sleeved inside the two column slots (62), and a second spring (66) being fixedly connected between the bottom end surface of the inner cavity of the column slot (62) and the corresponding backing plate (67).

6. A light safety hook production and testing device according to claim 4, characterized in that: The test box (39) is also provided with an adjustment unit (9) for adjusting the position state of the safety hook, the adjustment unit (9) comprising a cylinder (91) fixedly mounted at both ends of the outer side of the test box (39) and an image sensor (12) fixedly mounted on the inner side of the cover plate (4), the telescopic ends of the two cylinders (91) being fixedly connected to push seats (92), the two push seats (92) being both located inside the test box (39); Two rectangular columns (93) are fixedly provided on the top of the two push seats (92), an L-shaped square column (94) is fixedly provided on the top of each rectangular column (93), and a U-shaped rod (95) is fixedly connected between the corresponding L-shaped square columns (94) and the rectangular columns (93).

7. A light safety hook production and testing device according to claim 6, characterized in that: A deviation correction component is provided on the top of each of the two push seats (92), and the deviation correction component includes a movable block (96) disposed between a corresponding L-shaped square column (94) and a rectangular column (93), and a shaft (97) is rotatably mounted between the two movable blocks (96) disposed opposite to each other, and a driving motor (2) for driving the corresponding shaft (97) to rotate is fixedly mounted on the outer side of one of the movable blocks (96), and a rubber roller (98) is fixedly sleeved on the middle part of the outer side of the shaft (97); The deviation correction component also includes an arc-shaped square column (99) fixed between the top end surface and the bottom end surface of two movable blocks (96) arranged opposite to each other, and arc grooves are provided on the opposite sides of the corresponding L-shaped square column (94) and the rectangular square column (93), and the arc-shaped square column (99) is slidably mounted inside the arc grooves on the corresponding sides; A ring cylinder (913) is fixedly connected between two L-shaped square columns (94) arranged opposite to each other, a vertical rod (910) is movably inserted into the ring cylinder (913), a gear ring (911) that fits the upper end surface of the ring cylinder (913) is fixedly sleeved on the outer side of the vertical rod (910), a disk (912) is fixedly provided at the bottom end of the vertical rod (910), two L-shaped connecting rods (916) are fixedly connected to the outer side of the disk (912), and the ends of the two L-shaped connecting rods (916) are fixedly connected to a sleeve ring (917) that is movably sleeved on the outer side of the shaft rod (97), an L-shaped frame (915) is fixedly provided on the top of one of the L-shaped square columns (94), a spur gear (914) meshing with the gear ring (911) is rotatably installed on the inner side of the L-shaped frame (915), and a driving motor (3) that drives the spur gear (914) to rotate is fixedly installed on the top of the L-shaped frame (915).

8. A light safety hook production and testing device according to claim 7, characterized in that: A lifting assembly is also provided on the top of the two push seats (92), and the lifting assembly includes a sink (918) opened on the top of the push seat (92), a second cylinder (919) is fixedly installed inside the sink (918), and a lifting plate (920) is fixedly connected to the telescopic end of the second cylinder (919) and is in contact with the upper end surface of the sink (918).

9. A light safety hook production and testing device according to claim 2, characterized in that: The bottom end of the test box (39) is also provided with a material discharge control assembly, which comprises an L-shaped partition (10) fixed to the top of the rear side frame (31) and a material receiving platform (7) fixedly mounted on the top of the front side frame (32); one end of the L-shaped partition (10) movably penetrates the test box (39); a drain groove (11) is provided at the top of one end of the L-shaped partition (10) penetrating the test box (39); the drain groove (11) is directly opposite to the material receiving platform (7).

10. A light safety hook production and testing device according to claim 9, characterized in that: The material receiving platform (7) comprises two mounting blocks fixed on the top of the front side frame (32), an inclined platform which is in contact with the upper end surface of the front side frame (32) is provided between the two mounting blocks, ear blocks which are opposite to the mounting blocks are fixed on both sides of one end of the inclined platform close to the test box (39), a straight rod is fixed on one side of the two ear blocks, one end of the straight rod movably passes through the corresponding mounting block, and a connecting spring which is sleeved on the outer side of the straight rod and fixedly connects the corresponding ear block and the mounting block.

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