A hidden stop block type hook production press fitting system

Abstract

The present application relates to the technical field of hoisting equipment, and specifically provides a limit block hidden type hook production press fitting system, which comprises staggered first conveying chains and second conveying chains, the length directions of the first conveying chains and the second conveying chains are the same, a press fitting seat is fixedly arranged between the first conveying chains and the second conveying chains, and a press fitting mechanism is fixedly arranged on the opposite side of the press fitting seat. The limit block is conveyed through the first conveying chains, the hook body is conveyed through the second conveying chains, the hook body and the limit block converge at the press fitting seat, the riveting pin shaft is inserted through the reserved holes of the hook body and the limit block, and then the press fitting mechanism is used for realizing the press fitting riveting of the hook body and the limit block, so that the two do not need to be placed into a limiting clamp, and the working efficiency of the press fitting riveting can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hoisting equipment, and particularly provides a hidden limit block type press-fitting system for hook production. BACKGROUND

[0002] As key equipment in industry and engineering construction, hoisting equipment is widely used in material handling, assembly operation and heavy equipment hoisting fields. Among them, the hook, as a key component directly bearing the load in the hoisting equipment, its structural safety and reliability directly affect the safety of the overall hoisting process. Especially in the complex working conditions and limited space of the operation environment such as port loading and unloading, construction, and large manufacturing workshops, the hook often needs to be in frequent contact with external objects, and its stability and anti-interference ability are particularly important.

[0003] At present, the common hook structure usually includes a hook body 10, a lock block 20 and a limit block 30. As shown in Figure 1 The limit block 30 is usually arranged outside the hook body 10 to limit whether the lock block 20 can be opened. The above structures need to be independently produced and then assembled during production.

[0004] However, the current assembly method mainly relies on manual operation, which is low in efficiency. Specifically, the worker needs to manually position the hook body 10 and the lock block 20 in the limit clamp, then pass the riveting pin shaft through the corresponding reserved holes of the two, and finally press and rivet through machining. SUMMARY

[0005] The present application is aimed at the deficiencies of the prior art, and provides a hidden limit block type press-fitting system for hook production to improve the working efficiency of press riveting.

[0006] The technical scheme adopted by the present application to solve the technical problems is:

[0007] A hidden limit block type press-fitting system for hook production, comprising staggered first and second conveying chains, the lengths of the first and second conveying chains are the same, a press-fitting seat is fixedly arranged between the first and second conveying chains, and a press-fitting mechanism is fixedly arranged on the opposite side of the press-fitting seat;

[0008] Among them, a plurality of hanging rods are fixedly installed on one side of the first conveying chain, and the plurality of hanging rods are perpendicular to the plane where the press-fitting seat is located;

[0009] A plurality of grabbing mechanisms are fixedly installed on one side of the second conveying chain, the plurality of grabbing mechanisms are arranged on the same side as the plurality of hanging rods, and the center lines of the plurality of grabbing mechanisms are perpendicular to the plane where the press-fitting seat is located;

[0010] The grabbing mechanism comprises an electric push rod which is perpendicular to the plane where the pressing seat is located, the movable end of the electric push rod is fixedly connected with the end face of a piston, the piston is movably arranged in a piston sleeve, the fixed part of the electric push rod is fixedly installed with a ring, and the ring is fixedly connected with the piston sleeve through a plurality of spring telescopic rods.

[0011] The end of the piston sleeve away from the electric push rod is sleeved with a rim, the rim is fixedly connected with the piston sleeve, the outer ring of the rim is detachably installed with a tire, and the rim is communicated with the piston sleeve through an air pipe.

[0012] Further, two limiting columns are fixedly installed on the outer periphery of the end of the piston sleeve close to the electric push rod, the two limiting columns are symmetrically arranged, two wedge-shaped blocks are fixedly arranged between the first conveying chain and the second conveying chain, and the two limiting columns can respectively slide along the wedge-shaped surfaces of the corresponding wedge-shaped blocks.

[0013] Further, the wedge-shaped blocks are isosceles trapezoidal structures, and the wedge-shaped surfaces are all directed to the pressing seat.

[0014] Further, the pressing mechanism comprises a movable seat, a pressing hydraulic cylinder which is perpendicular to the pressing seat is fixedly installed on one side of the movable seat, a guide hole is formed in the face of the other side of the movable seat which is directed to the pressing seat, and the guide hole is perpendicular to the pressing seat.

[0015] A discharging groove is formed in the top surface of the movable seat, the discharging groove is communicated with the guide hole, a discharging hydraulic cylinder is fixedly installed in the discharging groove, and the discharging hydraulic cylinder is coaxially arranged with the guide hole.

[0016] Further, one end of a displacement hydraulic cylinder is fixedly connected with one side of the movable seat, and the axis extension line of the displacement hydraulic cylinder is perpendicular to the axis extension line of the guide hole.

[0017] Further, at least one guide rail is arranged on the bottom surface of the movable seat, and the guide rail is parallel to the displacement hydraulic cylinder.

[0018] Further, the outer ring of the rim is provided with a first edge which is concave, the inner ring of the tire is provided with a second edge which is convex, and the second edge is clamped with the first edge.

[0019] Further, the rim is fixedly connected with the piston sleeve through a plurality of connecting rods.

[0020] Compared with the prior art, the pressing system for the limit block hidden hook production of the application has the following beneficial effects:

[0021] The lock block is conveyed by the first conveying chain, the hook body is conveyed by the second conveying chain, the hook body and the lock block converge at the press-fitting seat, the riveting pin shaft is inserted through the reserved holes of the hook body and the lock block, and then the press-fitting riveting of the hook body and the lock block is realized by the press-fitting mechanism, without the need of placing the hook body and the lock block into the limiting clamp, so that the working efficiency of the press-fitting riveting can be improved.

[0022] After assembly, the lifting hook can be sent to the next process by the first conveying chain for processing, without manual transportation, and the efficiency of the overall production process of the lifting hook is improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0024] FIG. 1 is a structural schematic diagram of a prior art exposed type limiting block lifting hook; Figure 1

[0025] FIG. 2 is a structural schematic diagram of a limiting block hidden type lifting hook; Figure 2 Figure 1

[0026] FIG. 3 is a structural schematic diagram of a limiting block hidden type lifting hook; Figure 3 Figure 2

[0027] FIG. 4 is a structural schematic diagram of a press-fitting system for producing a limiting block hidden type lifting hook; Figure 4

[0028] FIG. 5 is an enlarged view of A in FIG. 4; Figure 5 Figure 4 FIG. 6 is a structural schematic diagram of a press-fitting mechanism;

[0029] FIG. 7 is a structural schematic diagram of a wedge block. Figure 6

[0030] FIG. 8 is a structural schematic diagram of a wedge block. Figure 7 The marks in the drawings respectively represent:

[0031] 01-first conveying chain; 01a-hanging rod; 02-second conveying chain; 02b-grasping mechanism; 03-press-fitting seat; 04-press-fitting mechanism;

[0032]

[0033] ​​​​​​​​​02b1-Electric push rod; 02b2-Piston; 02b3-Piston sleeve; 02b4-Ring; 02b5-Spring telescopic rod; 02b6-Rim; 02b7-Tire; 02b8-Air pipe; 02b9-Connecting rod; 02c1-Limiting post; 02c2-Wedge block;

[0034] 04d1 - Movable seat; 04d2 - Press-fit hydraulic cylinder; 04d3 - Guide hole; 04d4 - Discharge groove; 04d5 - Discharge hydraulic cylinder; 04d6 - Shifting hydraulic cylinder; 04d7 - Guide rail;

[0035] 100-Hook body; 110-Mounting groove; 120-Arc groove; 130-Protrusion; 200-Locking block; 210-Annular part; 220-Strip part; 230-Card groove; 240-Allowing part; 250-Protrusion; 300-Limiting block; 310-Connecting part; 320-Snap-fitting part; 400-Pin shaft. Detailed Implementation

[0036] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0037] In this invention, unless otherwise stated, directional terms such as "upper," "lower," "left," and "right" generally refer to the upper, lower, left, and right as shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0038] The following is a preferred embodiment of a limit block concealed hook:

[0039] Appendix Figure 2 A schematic diagram of a limit block concealed hook structure Figure 1 , attached Figure 3 A schematic diagram of a limit block concealed hook structure Figure 2 See attached document. Figures 2-3 As shown, the limit block concealed hook in this embodiment includes a hook body 100, a locking block 200 and a limit block 300;

[0040] The hook 100 has a mounting groove 110 at its connecting end. The locking block 200 passes through the mounting groove 110 and is rotatably connected to it. The locking block 200 has a slot 230 on one side facing the inside of the mounting groove 110.

[0041] It should be noted that the top and both sides of the mounting groove 110 are open to the outside. The locking block 200 is connected to the mounting groove 110 by a pin 400, and both the hook body 100 and the locking block 200 are pre-set with shaft holes that match the pin 400.

[0042] It is easily understood that, after the pin shaft 400 connects the hook body 100 and the lock block 200 through the shaft hole, the hook body 100 and the lock block 200 are rotationally connected by machining and press-riveting.

[0043] The limiting block 300 comprises a connecting part 310 and a clamping part 320, the connecting part 310 is rotationally connected with the mounting groove 110, and the connecting part 310 is fixedly connected with the clamping part 320, one end of the clamping part 320 can be clamped with the clamping groove 230, and when the one end of the clamping part 320 is located inside the clamping groove 230, the other end of the clamping part 320 is located inside the mounting groove 110.

[0044] Referring to Figure 2 It is to be noted that the one end of the clamping part 320 matched with the clamping groove 230 is a wedge-shaped structure.

[0045] Further, the connecting part 310 and the mounting groove 110 are rotationally connected through a cylindrical pin, and a spring or a torsion spring (not shown in the figure) is arranged at the connecting part 310 and the mounting groove 110, so that when the one end of the clamping part 320 is located inside the clamping groove 230, the user needs to overcome the elastic force of the spring or the torsion spring to separate them, thereby further improving the safety of the lifting hook.

[0046] In the implementation process, the connecting part 310 and the clamping part 320 are an integral structure.

[0047] In the implementation process, the lock block 200 comprises a ring-shaped part 210 and a strip-shaped part 220, and the ring-shaped part 210 and the strip-shaped part 220 are an integral structure.

[0048] It is easily understood that the ring-shaped part 210 is used to connect a hoisting rope or a hoisting chain, etc. The pin shaft 400 is arranged at one end of the strip-shaped part 220 close to the ring-shaped part 210. In other embodiments, the pin shaft 400 can also be arranged at the connecting part of the strip-shaped part 220 and the ring-shaped part 210. The present application does not limit this.

[0049] When the limiting block hidden lifting hook of the present application is used, the ring-shaped part 210 needs to swing downward, and at the same time, the limiting block 300 needs to swing upward to make the clamping part 320 of the limiting block 300 separate from the clamping groove 230, so as to make the lock block 200 rotate around the pin shaft 400 to open. Since the hook body 100 needs to connect a hoisted object, and the ring-shaped part 210 needs to connect a hoisting device, the downward swing of the ring-shaped part 210 means that the lifting hook is no longer subjected to the gravity of the hoisted object and / or the pulling force of the hoisting device, so as to open the lock block 200 in the empty load state of the lifting hook.

[0050] In the embodiment, when the clamping portion 320 cooperates with the clamping groove 230, the movement of the locking block 200 can be effectively limited, and at this time, the limiting block 300 is completely located in the mounting groove 110 and is not easily impacted by external objects, so as to avoid displacement or damage of the limiting block 300, thereby reducing the probability of accidental opening of the locking block 200 and the risk of falling of the hoisted object.

[0051] In the implementation process, the clamping portion 320 is in an arc shape, and a side of the clamping portion 320 away from the connecting portion 310 is concave.

[0052] In the embodiment, the clamping portion 320 in the arc shape can facilitate user operation and improve operation comfort.

[0053] In the implementation process, an arc-shaped groove 120 is arranged at another end of the mounting groove 110 away from the locking block 200 and close to the clamping portion 320, and the arc-shaped groove 120 is connected to the outside.

[0054] In the embodiment, the arc-shaped groove 120 provides sufficient space for user operation of the clamping portion 320, so that the user can manually operate the clamping portion 320 without the aid of tools.

[0055] Referring to Figure 3 In the implementation process, the locking block 200 is provided with an avoiding portion 240 at one end away from the mounting groove 110, the avoiding portion 240 is arranged at a side of the locking block 200 facing the lap joint end of the hook body 100, and the outer ends of the avoiding portion 240 are respectively fixedly provided with protruding blocks 250.

[0056] It is easy to understand that the protruding blocks 250 and the locking block 200 are in an integral structure. The avoiding portion 240 and the protruding blocks 250 are arranged at one end of the strip-shaped portion 220 away from the ring-shaped portion 210.

[0057] The hook body 100 is provided with grooves 130 at both sides of the lap joint end, the two protruding blocks 250 can be respectively inserted into the corresponding grooves 130, and the lap joint end of the hook body 100 can be located in the avoiding portion 240.

[0058] In the embodiment, when the two protruding blocks 250 are respectively inserted into the corresponding grooves 130 and the lap joint end of the hook body 100 is located in the avoiding portion 240, the hook body 100 and the locking block 200 are hooked, and in the hoisting process, under the action of the gravity of the hoisted object and the tension of the hoisting device, the hook body 100 and the locking block 200 can be in close contact, thereby improving the stability of the hook in the hoisting process.

[0059] The production process of the limiting block hidden hook will be described below.

[0060] S100: First, the raw material of the hook body is forged to obtain a rough hook body blank; then, the rough hook body blank is normalized and shot blasted to obtain a hook body blank. The hook body blank is inspected to see if it is qualified. If it is not qualified, it is ground until it is qualified; if it is qualified, it is milled; the milled hook body blank is quenched and tempered, and then shot blasted again; finally, it is drilled and milled to obtain the hook body 100.

[0061] S200, assemble the hook body 100 with the limiting block 300.

[0062] S300: First, the raw material of the lock block is forged to obtain a rough block blank; then, the rough block blank is normalized and shot blasted to obtain a lock block blank. The lock block blank is inspected to see if it is qualified. If it is not qualified, it is ground until it is qualified; if it is qualified, it is milled; the milled lock block blank is quenched and tempered, and then shot blasted a second time to obtain the lock block 200.

[0063] It is easy to understand that step S300 can be performed before step S100 or simultaneously with step S100, and this application does not impose any restrictions on this.

[0064] S400: First, the raw material of the pin is forged to obtain the pin blank; then, the two end faces of the pin blank are chamfered; then, the chamfered pin blank is quenched and tempered; finally, the outer diameter is ground to obtain the pin 400.

[0065] S500, the hook body 100, locking block 200 and pin 400 are press-fitted and riveted together to obtain the above-mentioned limit block concealed hook.

[0066] S600 features a hidden hook for the limit block that undergoes powder coating treatment.

[0067] In step S500 above, manual operation is required. That is, the worker manually puts the hook body 100 and the locking block 200 into the corresponding limit fixture, then passes the pin 400 through the pre-reserved shaft hole on the hook body 100 and the locking block 200, and finally achieves the press-fitting and riveting of the hook body 100 and the locking block 200 by machining. The work efficiency is low.

[0068] To address the aforementioned issues, this application proposes a press-fitting system for the production of limit block concealed hooks.

[0069] Appendix Figure 4 A schematic diagram of a press-fitting system for producing concealed limit block hooks is attached. Figure 5 It is attached Figure 4 Enlarged view of the A-axis structure in the image, with appendix. Figure 6 This is a structural diagram of the pressing mechanism, attached. Figure 7 This is a structural diagram of the wedge block. (See attached diagram.) Figures 4-7As shown, the limiting block concealed hook production press-fitting system in the embodiment comprises staggered first conveying chain 01 and second conveying chain 02, the length direction of the first conveying chain 01 and the second conveying chain 02 is same, the first conveying chain 01 and the second conveying chain 02 are fixedly provided with press-fitting seat 03, and the opposite side of the press-fitting seat 03 is fixedly provided with press-fitting mechanism 04.

[0070] It should be noted that the first conveying chain 01, the second conveying chain 02, the press-fitting seat 03 and the press-fitting mechanism 04 are fixed relative to the ground. Specifically, the first conveying chain 01, the second conveying chain 02, the press-fitting seat 03 and the press-fitting mechanism 04 can be fixedly arranged on the rack, and the rack is fixedly connected with the ground. The specific mounting or connecting mode can refer to the prior art, and will not be described here in detail.

[0071] Among them, a plurality of hanging rods 01a are fixedly installed on one side of the first conveying chain 01, and the plurality of hanging rods 01a are perpendicular to the plane where the press-fitting seat 03 is located.

[0072] The plane where the press-fitting seat 03 is located refers to a vertical plane perpendicular to the length direction of the first conveying chain 01 and the second conveying chain 02. The hanging rods 01a are arranged on the side of the first conveying chain 01, and are uniformly spaced. The hanging rods 01a can be installed by welding, and in other embodiments, they can also be installed by other fixed installation methods such as bolts, and the present application does not limit this.

[0073] Referring to the accompanying drawings Figure 4 As shown, it is easy to understand that the first conveying chain 01 is located above the second conveying chain 02, so that when the locking block 200 runs to the bottom left side of the first conveying chain 01 and the hook body 100 runs to the top right side of the second conveying chain 02, the locking block 200 enters the installation slot 110 of the hook body 100, and the shaft holes of the locking block 200 and the hook body 100 are aligned.

[0074] A plurality of grabbing mechanisms 02b are fixedly installed on one side of the second conveying chain 02, and the plurality of grabbing mechanisms 02b are arranged on the same side as the plurality of hanging rods 01a, and the center lines of the plurality of grabbing mechanisms 02b are perpendicular to the plane where the press-fitting seat 03 is located.

[0075] Similarly, the grabbing mechanisms 02b are arranged on the side of the second conveying chain 02, and are uniformly spaced. In addition, when the lengths of the first conveying chain 01 and the second conveying chain 02 are the same, the number of hanging rods 01a and grabbing mechanisms 02b is the same, and the spacing distance between adjacent two is also the same. The number and spacing can be set according to the actual installation environment, and the present application does not limit this.

[0076] Referring to the accompanying drawings Figure 5As shown, the grabbing mechanism 02b includes an electric push rod 02b1 perpendicular to the plane where the pressing seat 03 is located, the movable end of the electric push rod 02b1 is fixedly connected with the end face of a piston 02b2, the piston 02b2 is movably arranged in a piston sleeve 02b3, the fixed part of the electric push rod 02b1 is fixedly installed with a circular ring 02b4, and the circular ring 02b4 is fixedly connected with the piston sleeve 02b3 through a plurality of spring expansion rods 02b5.

[0077] It is easy to understand that the fixed end of the electric push rod 02b1 is fixedly connected with the side surface of the second conveying chain 02. The electric push rod 02b1 can be powered by a slide wire. A sealing ring is sleeved on the piston 02b2 to form a sealed pneumatic chamber with the inner wall of the piston sleeve 02b3. When the electric push rod 02b1 is extended or retracted, the piston 02b2 is driven to move in the piston sleeve 02b3, so as to change the volume of the pneumatic chamber, and the pneumatic chamber is inflated or deflated through the air pipe 02b8.

[0078] The piston sleeve 02b3 is sleeved with a rim 02b6 away from the electric push rod 02b1, the rim 02b6 is fixedly connected with the piston sleeve 02b3, the outer ring of the rim 02b6 is detachably installed with a tire 02b7, and the rim 02b6 is in communication with the piston sleeve 02b3 through the air pipe 02b8.

[0079] The air pipe 02b8 communicates the sealed pneumatic chamber formed in the piston sleeve 02b3 with the internal cavities of the rim 02b6 and the tire 02b7.

[0080] In the implementation process, the outer ring of the rim 02b6 is provided with a first edge concave, the inner ring of the tire 02b7 is provided with a second edge protruding, and the second edge is clamped with the first edge.

[0081] It is easy to understand that through the clamping cooperation of the second edge and the first edge, the tire 02b7 and the rim 02b6 are conveniently disassembled.

[0082] In the implementation process, the rim 02b6 and the piston sleeve 02b3 are fixedly connected through a plurality of connecting rods 02b9. The plurality of connecting rods 02b9 are circumferentially distributed between the piston sleeve 02b3 and the rim 02b6, and together form a rigid connection frame to ensure the stability of power transmission.

[0083] It should be noted that since the hook body 100 may have residual heat after heat treatment before assembly, the tire 02b7 is made of heat-resistant rubber or other materials to ensure its service life and grabbing reliability under this working condition.

[0084] In this embodiment, the annular portion 210 of the locking block 200 is hung on the hanging rod 01a, and the hook portion of the hook body 100 is fitted onto the tire 02b7. Initially, the tire 02b7 is not filled with gas. After the hook body 100 is fitted onto the tire 02b7, the electric push rod 02b1 is extended, driving the piston 02b2 to move, allowing the gas in the piston sleeve 02b3 to be introduced into the rim 02b6 through the air pipe 02b8, thereby causing the tire 02b7 to expand until it is in close contact with the hook body 100. Subsequently, the first conveyor chain 01 and the second conveyor chain 02 are controlled to work, causing the hook body 100 and the locking block 200 to meet at the press-fit seat 03. The first conveyor chain 01 and the second conveyor chain 02 are then stopped working, and the pin shaft 400 is passed through the shaft hole of the hook body 100 and the locking block 200. Finally, the press-fit mechanism 04 is controlled to work, thus realizing the press-fit riveting of the hook body 100, the locking block 200, and the pin shaft 400. There is no need to place the hook body 100 and the locking block 200 into the limiting fixture, which can improve the efficiency of press-fitting and riveting.

[0085] After assembly, the first conveyor chain 01 and the second conveyor chain 02 are controlled to continue working. The assembled hook can be sent to the next process for processing through the first conveyor chain 01 without manual transportation, which is conducive to improving the efficiency of the overall hook production process.

[0086] See attached document Figure 5 As shown, in the specific implementation process, two limiting posts 02c1 are fixedly installed on the outer periphery of one end of the piston sleeve 02b3 near the electric push rod 02b1. The two limiting posts 02c1 are symmetrically arranged. Two wedge blocks 02c2 are fixedly arranged between the first conveyor chain 01 and the second conveyor chain 02. The two limiting posts 02c1 can slide along the wedge surface of the corresponding wedge block 02c2 respectively.

[0087] It is easy to understand that a limiting post 02c1 is provided at the top and bottom of the piston sleeve 02b3, and the two limiting posts 02c1 corresponding to each piston sleeve 02b3 are coaxial, with the axis perpendicular to the axis of the piston sleeve 02b3.

[0088] It should be noted that both wedge blocks 02c2 are fixedly connected to the frame.

[0089] See attached document Figure 7 As shown, in the specific implementation process, the wedge block 02c2 is an isosceles trapezoidal structure, and the wedge surfaces all face the press-fit seat 03.

[0090] In this embodiment, after the pin 400 passes through the hook body 100 and the locking block 200, or after the press-fitting and riveting are completed, before the first conveyor chain 01 and the second conveyor chain 02 operate for the second time, the electric push rod 02b1 is controlled to retract, drawing out the gas inside the tire 02b7, so that the tire 02b7 separates from the hook body 100. When the first conveyor chain 01 and the second conveyor chain 02 operate again, the two limiting posts 02c1 respectively contact the corresponding wedge blocks 02c2 and move backward along the wedge surface of the wedge blocks 02c2 in a direction perpendicular to the press-fitting seat 03, thereby driving the piston sleeve 02b3 to move backward, the spring telescopic rod 02b5 retracts to store energy, and the thickness of the wedge block 02c2 is greater than the width of the tire 02b7, which allows the tire 02b7 to be moved out of the hook body 100, and the hook can be hung on the hanging rod 01a and continue to move with the first conveyor chain 01.

[0091] The symmetrical wedge-shaped structure of the isosceles trapezoid allows the limiting post 02c1 to be smoothly guided along the inclined surface during the return stroke, thereby driving the piston sleeve 02b3 to slowly reset and causing the spring telescopic rod 02b5 to extend smoothly. This effectively avoids the impact and shaking during the mechanism reset and improves the overall operational stability of the system.

[0092] See attached document Figure 6 As shown, in the specific implementation process, the pressing mechanism 04 includes a movable seat 04d1. A pressing hydraulic cylinder 04d2 perpendicular to the pressing seat 03 is fixedly installed on one side of the movable seat 04d1. A guide hole 04d3 is opened on the other side of the movable seat 04d1 facing the pressing seat 03. The guide hole 04d3 is perpendicular to the pressing seat 03.

[0093] Because the pin 400 needs to undergo heat treatment before press-fitting and riveting, the temperature is high. Workers need to use tools such as pliers to clamp it and then pass it through the shaft holes on the hook body 100 and the locking block 200. On the one hand, it is not easy to operate, and on the other hand, if it is accidentally dropped during operation, it may cause a safety accident.

[0094] To solve the above problems, a feeding groove 04d4 is provided on the top surface of the movable seat 04d1. The feeding groove 04d4 is connected to the guide hole 04d3. A feeding hydraulic cylinder 04d5 is fixedly installed in the feeding groove 04d4. The feeding hydraulic cylinder 04d5 is coaxially arranged with the guide hole 04d3.

[0095] It is easy to understand that the top surface of the movable seat 04d1 refers to the surface of the press-fitting mechanism 04 after it is actually installed, with the ground as the reference surface, and which is far away from the ground.

[0096] In the specific implementation process, one end of the displacement hydraulic cylinder 04d6 is fixedly connected to one side of the movable seat 04d1, and the extended line of the axis of the displacement hydraulic cylinder 04d6 is perpendicular to the extended line of the axis of the guide hole 04d3.

[0097] In this embodiment, the extension direction of the displacement hydraulic cylinder 04d6 is the same as the length direction of the first conveying chain 01 and the second conveying chain 02. The movable seat 04d1 can be moved by the displacement hydraulic cylinder 04d6, so as to make the guide hole 04d3 face the press-fitting seat 03, put the pin shaft 400 into the blanking groove 04d4, then control the blanking hydraulic cylinder 04d5 to extend, the pin shaft 400 is inserted into the shaft hole of the hook body 100 and the lock block 200 after passing through the guide hole 04d3, then the blanking hydraulic cylinder 04d5 is reset, the press-fitting hydraulic cylinder 04d2 is made to face the press-fitting seat 03 by the displacement hydraulic cylinder 04d6, then the press-fitting hydraulic cylinder 04d2 is controlled to extend, and the press-fitting riveting process is completed.

[0098] By integrating the blanking groove 04d4, the blanking hydraulic cylinder 04d5 and the displacement hydraulic cylinder 04d6, an efficient automatic press-fitting process is constructed. Specifically, the blanking hydraulic cylinder 04d5 realizes automatic and accurate feeding of the high-temperature pin shaft, so that it can safely and accurately pass through the shaft hole of the workpiece; the displacement hydraulic cylinder 04d6 drives the whole mechanism to switch between the “feeding” and “press-fitting” stations, realizing the assembly line operation. The press-fitting mechanism 04 overcomes the problems of low efficiency, unstable clamping and high-temperature scalding risk inherent in manual operation, and improves the safety and production efficiency of the equipment as a whole.

[0099] In the specific implementation process, at least one guide rail 04d7 is arranged on the bottom surface of the movable seat 04d1, and the guide rail 04d7 is parallel to the displacement hydraulic cylinder 04d6.

[0100] It is easy to understand that at least two guide rails 04d7 are arranged on the bottom surface of the movable seat 04d1. The guide rails 04d7 are fixed on the rack to constrain the movement path of the movable seat 04d1.

[0101] In this embodiment, by arranging the guide rail 04d7 parallel to the displacement hydraulic cylinder 04d6, accurate guidance and stable support are provided for the movement of the movable seat 04d1, effectively preventing the movable seat 04d1 from deflecting, jamming or wearing during movement, and ensuring the positioning accuracy and operation reliability of the press-fitting process.

[0102] The above-described embodiments are only one of the preferred specific embodiments of the present application, and the usual changes and replacements made by those skilled in the art within the scope of the technical solutions of the present application should be included in the protection scope of the present application.

Claims

1. A press-fitting system for producing a limit block concealed hook, comprising a first conveyor chain (01) and a second conveyor chain (02) arranged in an alternating manner, wherein the length directions of the first conveyor chain (01) and the second conveyor chain (02) are the same, a press-fitting seat (03) is fixedly arranged between the first conveyor chain (01) and the second conveyor chain (02), and a press-fitting mechanism (04) is fixedly arranged on the opposite side of the press-fitting seat (03); in, Several hanging rods (01a) are fixedly installed on one side of the first conveyor chain (01), and the several hanging rods (01a) are all perpendicular to the plane where the press base (03) is located; Several gripping mechanisms (02b) are fixedly installed on one side of the second conveyor chain (02). The gripping mechanisms (02b) are arranged on the same side as the hanging rods (01a), and the center lines of the gripping mechanisms (02b) are all perpendicular to the plane of the pressing seat (03). The gripping mechanism (02b) includes an electric push rod (02b1), which is perpendicular to the plane of the press-fitting seat (03). The movable end of the electric push rod (02b1) is fixedly connected to the end face of the piston (02b2). The piston (02b2) is movably disposed in the piston sleeve (02b3). A ring (02b4) is fixedly installed on the outer periphery of the fixed part of the electric push rod (02b1). The ring (02b4) and the piston sleeve (02b3) are fixedly connected by several spring telescopic rods (02b5). The piston sleeve (02b3) is fitted with a rim (02b6) at the end away from the electric push rod (02b1). The rim (02b6) is fixedly connected to the piston sleeve (02b3). A tire (02b7) can be detachably installed on the outer ring of the rim (02b6). The rim (02b6) and the piston sleeve (02b3) are connected through an air pipe (02b8).

2. The press-fitting system for producing a concealed limit block hook according to claim 1, characterized in that, Two limiting posts (02c1) are fixedly installed on the outer periphery of one end of the piston sleeve (02b3) near the electric push rod (02b1). The two limiting posts (02c1) are symmetrically arranged. Two wedge blocks (02c2) are fixedly arranged between the first conveyor chain (01) and the second conveyor chain (02). The two limiting posts (02c1) can slide along the wedge surface of the corresponding wedge block (02c2).

3. The press-fitting system for producing a concealed limit block hook according to claim 2, characterized in that, The wedge block (02c2) has an isosceles trapezoidal structure, and the wedge surfaces all face the press-fit seat (03).

4. A press-fitting system for producing a concealed limit block hook according to any one of claims 1-3, characterized in that, The pressing mechanism (04) includes a movable seat (04d1), on one side of the movable seat (04d1) a pressing hydraulic cylinder (04d2) perpendicular to the pressing seat (03) is fixedly installed, and on the other side of the movable seat (04d1) facing the pressing seat (03) a guide hole (04d3) is opened, the guide hole (04d3) being perpendicular to the pressing seat (03); The top surface of the movable seat (04d1) is provided with a feeding groove (04d4), which is connected to the guide hole (04d3). A feeding hydraulic cylinder (04d5) is fixedly installed in the feeding groove (04d4), and the feeding hydraulic cylinder (04d5) is coaxially arranged with the guide hole (04d3).

5. The press-fitting system for producing a concealed limit block hook according to claim 4, characterized in that, One side of the movable seat (04d1) is fixedly connected to one end of the displacement hydraulic cylinder (04d6), and the extended line of the axis of the displacement hydraulic cylinder (04d6) is perpendicular to the extended line of the axis of the guide hole (04d3).

6. The press-fitting system for producing a concealed limit block hook according to claim 5, characterized in that, The bottom surface of the movable seat (04d1) is provided with at least one guide rail (04d7), and the guide rail (04d7) is parallel to the displacement hydraulic cylinder (04d6).

7. A press-fitting system for producing a concealed limit block hook according to any one of claims 1-3, characterized in that, The outer ring of the rim (02b6) has a concave first edge, and the inner ring of the tire (02b7) has a protruding second edge, which engages with the first edge.

8. A press-fitting system for producing a concealed limit block hook according to any one of claims 1-3, characterized in that, The wheel rim (02b6) and the piston sleeve (02b3) are fixedly connected by several connecting rods (02b9).

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