Small-caliber pipeline preassembling device

Abstract

The invention discloses a small-caliber pipeline preassembling device, and relates to the technical field of pipeline assembling. The device comprises a preassembling table, the preassembling table is of a hollow structure, two operation tables are arranged in the preassembling table, one face of each operation table is provided with a connector sleeve, one face of each operation table is provided with three hollow rings, one face of each operation table is provided with a hollow rod, one hollow rod penetrates through the three adjacent hollow rings and is coaxial with the corresponding hollow ring, and the other hollow rod penetrates through the other hollow ring and is coaxial with the corresponding hollow ring. Wherein the three adjacent hollow rings and one joint sleeve are coaxial; according to the hydraulic rubber pipe pre-assembling device, the hollow ring and the connector sleeve are driven by the pre-assembling mechanism to get close to each other, the connector accessory and the clamped hydraulic rubber pipe get close synchronously, the end of the hydraulic rubber pipe is horizontally inserted into the connector accessory, the phenomenon that the hydraulic rubber pipe is bent in the pre-assembling process is avoided, and therefore pre-assembling of the hydraulic rubber pipe and the connector accessory is conveniently achieved; the small-opening-diameter hydraulic rubber pipe is convenient to assemble, the assembling efficiency is improved, time and labor are saved, and the rate of defective goods is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline assembly, in particular to a small-caliber pipeline preassembly device. Background Art

[0002] Hydraulic hose is the "blood" of the hydraulic system of construction machinery. It is used to connect various hydraulic components in the hydraulic system. It can transmit hydraulic power or transport high-pressure media such as water, gas, and oil to ensure the circulation of liquid and transmit liquid energy. The hydraulic hose assembly usually consists of four parts: hose, sleeve, joint core and nut. The two ends of the hose are assembled and pressed with the connecting joint. Since the hydraulic hose has to withstand greater pressure, especially at the connection between the connecting joint and the hose body, the sealing between the two is required to be higher. Therefore, the distance between the hose body and the connecting joint must reach the specified position. However, the small-diameter joints and sleeves are manually assembled during the production process, but not every part can be easily matched with each other. If the installation force cannot meet the requirements, the hose and the joint cannot be assembled in place, and then the next process of crimping cannot be carried out, which cannot ensure the normal and orderly production of the hydraulic hose assembly; The current solution is to use a pipe jacking machine for assembly, which can only achieve installation in place, but cannot effectively protect the rubber inside the hose. The assembly force is too large and too fast, and the matching angle during assembly is easy to shovel the rubber inside the hose. Excessive assembly force will also cause the hose to bend. The above methods are more or less risky and are not conducive to inspection, which ultimately leads to unqualified products. In view of the above problems, the inventor proposes a small-diameter pipeline pre-installation device to solve the above problems. Summary of the invention

[0003] In order to solve the above-mentioned problems, the purpose of the present invention is to provide a small-diameter pipeline pre-installation device.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: a small-diameter pipeline preinstallation device, including a preinstallation table, the preinstallation table is an internal hollow structure, two operating tables are arranged inside the preinstallation table, one side of the two operating tables is provided with a joint sleeve, one side of the two operating tables is provided with three hollow rings, one side of the two operating tables is provided with a hollow rod, one of the hollow rods passes through three adjacent hollow rings and is coaxial with the hollow rings, wherein the three adjacent hollow rings and a joint sleeve are coaxial, the hollow rod is provided with an inner wall limit assembly, the hollow ring is provided with an outer wall limit assembly, the two operating tables and the preinstallation table are provided with preinstallation mechanisms, and a flip assembly is provided between the preinstallation table and the two operating tables.

[0005] Preferably, the inner wall limiting assembly includes a plurality of arc-surface clamping plates, and a plurality of evenly distributed ear blocks are fixedly mounted on the hollow rod, wherein a rotating shaft is rotatably mounted between two adjacent ear blocks, and a connecting plate is fixedly mounted on the outer walls of the plurality of rotating shafts, wherein one end of one of the connecting plates is fixedly connected to the middle of a arc-surface clamping plate.

[0006] Preferably, a plurality of evenly distributed movable plates are slidably provided inside the two hollow rods, two stretching rods are hingedly installed on the plurality of movable plates, one end of one of the stretching rods is hinged to one end of a connecting plate, a lead screw is rotatably installed inside the two hollow rods, one of the lead screws passes through three adjacent movable plates and is threadedly rotatably connected to the movable plates, and a knob is fixedly installed at one end of the two lead screws.

[0007] Preferably, the outer wall limit assembly includes a plurality of arc surface limit plates, wherein four adjacent arc surface limit plates are distributed in a hollow ring in a ring array, and four U-shaped frames are provided inside the plurality of hollow rings, wherein one end of one of the U-shaped frames is fixedly connected to the outer wall of a arc surface limit plate, and four threaded rods distributed in a ring array are rotatably installed on the plurality of hollow rings, and one of the threaded rods is threadedly rotatably connected to a U-shaped frame.

[0008] Preferably, a transmission gear is fixedly installed on one end of several of the threaded rods, a circular guide rail is fixedly installed on one side of several of the hollow rings, two arc-surface sliders are slidably installed on several of the circular guide rails, wherein a transmission gear ring is fixedly installed on one side of two adjacent arc-surface sliders, one of the transmission gear rings is meshingly connected with four adjacent transmission gears, wherein a driving gear ring is fixedly installed on the outer side walls of two adjacent arc-surface sliders, wherein telescopic rods are rotatably installed on three adjacent hollow rings, and a first driving gear is provided on several of the hollow rings, wherein two of the first driving gears are fixedly connected to the fixed end of a telescopic rod, one of the first driving gears is fixedly connected to the telescopic end of a telescopic rod, and one of the first driving gears is meshingly connected to a driving gear ring, and a synchronous wheel is fixedly installed on one end of the two lead screws and the fixed ends of the two telescopic rods, wherein a synchronous belt is transmission-installed between two adjacent synchronous wheels.

[0009] Preferably, the pre-installation mechanism includes two first sliders and two second sliders, and the two operating tables are provided with slide grooves, one of the first sliders is slidably installed at one end of a slide groove, and one of the second sliders is slidably installed at the other end of the slide groove, and one side of the two first sliders is fixedly installed with a first connecting rod, one end of one of the first connecting rods is fixedly connected to the outer wall of a joint sleeve, and one side of the two second sliders is fixedly installed with two second connecting rods, and one end of four second connecting rods is fixedly connected to the outer walls of four hollow rings, and one side of the two second sliders is provided with a third connecting rod, and the two third connecting rods One end of the rod is fixedly connected to the outer walls of two of the hollow rings, and a U-shaped rod is fixedly installed in the middle part of the two second connecting rods, and one end of one of the U-shaped rods is fixedly connected to one end of a hollow rod, and one side of the two operating tables is provided with two tooth plates, and one end of the two tooth plates is fixedly connected to the other sides of the two first sliding blocks, and one end of the other two tooth plates is fixedly connected to the other sides of the two second sliding blocks, and one side of the two operating tables is rotatably installed with a first rotating shaft, and one end of the two first rotating shafts is fixedly installed with a second driving gear, and one of the second driving gears is meshed with two adjacent tooth plates.

[0010] Preferably, a first motor is fixedly installed on one side of the pre-installation table, a rotating rod is fixedly installed on the driving output end of the first motor, a square groove is provided at one end of the rotating rod, a square block is fixedly installed on the other end of the two first rotating shafts, one of the square blocks is in movably contact with the inner wall of the square groove, a limiting retaining ring is fixedly installed on one end of the two joint sleeves, a sliding groove is provided on one side of the two second sliding blocks, a sliding block is slidably installed on one end of the two sliding grooves, the other end of one of the second connecting rods is fixedly connected to the upper surface of a sliding block, and a spring rod is fixedly installed on the other end of the two sliding grooves, and the telescopic end of one of the spring rods is fixedly connected to one side of a sliding block.

[0011] Preferably, the flipping assembly includes a fixed roller, the opposite sides of the two operating tables are fixedly connected to the outer walls of the fixed roller, a second rotating shaft is rotatably installed in the middle of the pre-installation table, the second rotating shaft passes through the fixed roller and is fixedly connected to the fixed roller, a second motor is fixedly installed on the other side of the pre-installation table, and a driving output end of the second motor is fixedly connected to one end of the second rotating shaft.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the joint fitting is placed in the joint sleeve, and the hydraulic hose is sleeved on the outside of the hollow rod. The inner wall limiting assembly and the outer wall limiting assembly are cooperated, and the curved surface clamping plate contacts the inner wall of the hydraulic hose to tighten the hydraulic hose, and the curved surface limiting plate contacts the outer wall of the hydraulic hose to limit the hydraulic hose, so as to complete the clamping of the hydraulic hose, thereby facilitating subsequent assembly operations and improving the convenience of assembly operations. 2. In the present invention, the hollow ring and the joint sleeve are driven to approach each other by the pre-installation mechanism, and the joint fitting and the clamped hydraulic hose are synchronously approached, so that the end of the hydraulic hose is horizontally inserted into the joint fitting, avoiding the bending of the hydraulic hose during the pre-installation process, thereby conveniently realizing the pre-installation of the hydraulic hose and the joint fitting, facilitating the assembly of the small-mouth hydraulic hose, improving the assembly efficiency, saving time and labor, and reducing the scrap rate; 3. In the present invention, by driving the fixed rollers in the flipping assembly to rotate, the fixed rollers flip the two operating tables, and the pre-installed hydraulic hoses and joint accessories flip synchronously. When the clamping of the hydraulic hoses is released, the hydraulic hoses and joint accessories automatically fall downward into the external collection box, so that the pre-installation and material collection of the hydraulic hoses can be completed on the two operating tables, further improving the assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 The figure is a schematic diagram of the overall structure of a small-diameter pipeline pre-installation device of the present invention.

[0015] Figure 2 It is a structural schematic diagram of the pre-installation mechanism, the turning assembly, the platform plate and the pre-installation table of the present invention.

[0016] Figure 3 It is a structural schematic diagram of the inner wall limiting assembly, the outer wall limiting assembly and the operating table of the present invention.

[0017] Figure 4 It is a structural schematic diagram of the pre-installation mechanism, the inner wall limit assembly and the outer wall limit assembly of the present invention.

[0018] Figure 5 For the present invention Figure 4 A magnified schematic diagram of part A in FIG.

[0019] Figure 6 For the present invention Figure 4 An enlarged schematic diagram of part B in FIG.

[0020] Figure 7 It is a schematic diagram of the connection of the inner wall limit assembly and the cross-section structure of the hollow rod of the present invention.

[0021] Figure 8 For the present invention Figure 7 Enlarged schematic diagram of part C in FIG.

[0022] Fig. 9 It is a schematic diagram of the cross-section structure of the connection of the outer wall limiting assembly and the hollow ring of the present invention.

[0023] Fig.10 It is a schematic diagram of the separation structure of the transmission gear ring and the arc surface slider of the present invention.

[0024] Fig.11 It is a schematic diagram of the separation structure of the square block and the square groove of the present invention.

[0025] In the figure: 1. pre-assembly table; 2. operation table; 21. joint sleeve; 22. hollow ring; 23. hollow rod; 3. inner wall limit assembly; 31. arc surface abutment plate; 32. ear block; 33. rotating shaft; 34. connecting plate; 35. moving plate; 36. guide block; 37. stretching rod; 38. lead screw; 39. knob; 4. outer wall limit assembly; 41. arc surface limit plate; 42. U-shaped frame; 43. guide rod; 44. sliding sleeve; 45. fixed rod; 46. threaded rod; 47. transmission gear; 48. circular guide rail; 49. arc surface slider; 5. transmission gear ring; 51. driving gear ring; 52. Telescopic rod; 53, first driving gear; 54, synchronous wheel; 55, synchronous belt; 6, pre-installed mechanism; 61, first slider; 62, second slider; 63, slide groove; 64, first connecting rod; 65, second connecting rod; 651, third connecting rod; 652, U-shaped rod; 66, tooth plate; 67, first rotating shaft; 68, second driving gear; 69, first motor; 7, rotating rod; 71, square groove; 72, square block; 73, limit stop ring; 74, sliding groove; 75, sliding block; 76, spring rod; 8, flip assembly; 81, fixed roller; 82, second rotating shaft; 83, second motor. DETAILED DESCRIPTION

[0026] 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.

[0027] Example: Figure 1-11As shown, the present invention provides a small-diameter pipeline preinstallation device, including a preinstallation table 1, which is an internal hollow structure. Two operating tables 2 are arranged inside the preinstallation table 1, and one side of the two operating tables 2 is provided with a joint sleeve 21. By setting the joint sleeve 21, during the hydraulic hose assembly operation, the joint accessories in the hydraulic hose assembly are placed in the joint sleeve 21, and one side of the two operating tables 2 is provided with three hollow rings 22, and one side of the two operating tables 2 is provided with a hollow rod 23, one of which passes through three adjacent hollow rings 22 and is coaxial with the hollow rings 22. By setting the hollow ring 22 and the hollow rod 23 coaxial with the joint sleeve 21, when the hose in the hydraulic hose assembly is sleeved on the outside of the hollow rod 23 and the hydraulic hose passes through the three hollow rings 22, the hydraulic hose and the joint accessories remain coaxial, wherein the three adjacent hollow rings 22 and one joint sleeve 21 are coaxial, and the hollow rod 23 is provided with an inner wall limit component 3, and the hollow ring An outer wall limit component 4 is provided on 22. By setting the inner wall limit component 3 and the outer wall limit component 4, the inner wall limit component 3 can limit the hydraulic hose through the inner wall of the hydraulic hose, and the outer wall limit component 4 can limit the hydraulic hose through the outer wall of the hydraulic hose, thereby realizing the clamping of the hydraulic hose. A pre-installation mechanism 6 is provided on the two operating platforms 2 and the pre-installation platform 1. By setting the pre-installation mechanism 6, the pre-installation mechanism 6 can make the hollow ring 22 and the joint sleeve 21 close to each other, so that the clamped hydraulic hose and the joint accessories are close to each other, and the end of the hydraulic hose is inserted into the joint accessories. A flip component 8 is provided between the pre-installation platform 1 and the two operating platforms 2. By setting the flip component 8, the flip component 8 can flip the two operating platforms 2, and the hydraulic hose can be pre-installed on one operating platform 2 and clamped on the other operating platform 2, or the pre-installed hydraulic hose and joint accessories can be removed, thereby improving the pre-installation efficiency of the hydraulic hose and the joint accessories.

[0028] The inner wall limiting assembly 3 includes a plurality of arc surface tightening plates 31, and a plurality of evenly distributed ear blocks 32 are fixedly installed on the hollow rod 23, wherein a rotating shaft 33 is rotatably installed between two adjacent ear blocks 32, and a connecting plate 34 is fixedly installed on the outer walls of the plurality of rotating shafts 33, and one end of one connecting plate 34 is fixedly connected to the middle part of a arc surface tightening plate 31. By setting the arc surface tightening plate 31, when the arc surface tightening plate 31 is away from the hollow rod 23, the outer wall of the arc surface tightening plate 31 contacts the inner wall of the hydraulic hose, so that the hydraulic hose is in a tightened state, and by driving the connecting plate 34 to flip with the axis of the rotating shaft 33 as the center of the circle, the connecting plate 34 makes the arc surface tightening plate 31 away from or close to the hollow rod 23, and when the arc surface tightening plate 31 is away from the hollow rod 23, the arc surface tightening plate 31 contacts the inner wall of the hydraulic hose and tightens the hydraulic hose.

[0029] A number of evenly distributed movable plates 35 are slidably provided inside the two hollow rods 23, and two stretching rods 37 are hingedly installed on the movable plates 35. One end of one stretching rod 37 is hinged to one end of a connecting plate 34. A lead screw 38 is rotatably installed inside the two hollow rods 23, and one lead screw 38 passes through three adjacent movable plates 35 and is threadedly rotatably connected to the movable plates 35. A knob 39 is fixedly installed at one end of the two lead screws 38. By rotating the lead screw 38, the lead screw 38 can move the movable plate 35 in a horizontal direction. By driving the movable plate 35 to move horizontally, the movable plate 35 can flip the connecting plate 34 through the stretching rod 37.

[0030] Guide blocks 36 are fixedly installed on both sides of the plurality of movable plates 35, and the guide blocks 36 are slidably connected to the inner wall of the hollow rod 23. By setting the guide blocks 36, the guide blocks 36 slide horizontally along the inner wall of the hollow rod 23, thereby guiding the movable plates 35 in the horizontal direction, so that the movable plates 35 keep moving in the horizontal direction.

[0031] The outer wall limiting assembly 4 comprises a plurality of arc surface limiting plates 41, wherein four adjacent arc surface limiting plates 41 are arranged in a ring-shaped array in a hollow ring 22, and four U-shaped frames 42 are arranged inside the plurality of hollow rings 22, wherein one end of one U-shaped frame 42 is fixedly connected to the outer wall of one arc surface limiting plate 41, and four threaded rods 46 distributed in a ring-shaped array are rotatably installed on the plurality of hollow rings 22, wherein one threaded rod 46 is threadedly rotatably connected to a U-shaped frame 42, and the arc surface limiting plates 41 are driven to rise and fall in the vertical direction, and when the four arc surface limiting plates 41 move toward the axial direction of the hollow ring 22, the inner wall of the arc surface limiting plates 41 contacts the outer wall of the hydraulic hose and clamps the hydraulic hose, and the arc surface clamping plate 31 is provided to realize the clamping of the hydraulic hose, and the threaded rod 46 is rotated, so that the threaded rod 46 can drive the U-shaped frame 42 to move, and the U-shaped frame 42 can move the arc surface limiting plates 41.

[0032] The inner walls of the plurality of hollow rings 22 are fixedly mounted with a plurality of uniformly distributed guide rods 43, one end of the plurality of guide rods 43 is slidably mounted with a sliding sleeve 44, and the outer walls of the plurality of sliding sleeves 44 are fixedly mounted with a fixing rod 45, wherein one end of two adjacent fixing rods 45 is fixedly connected to the other end of a U-shaped frame 42, and by arranging the guide rods 43, the sliding sleeve 44 and the fixing rods 45, the sliding sleeve 44 slides on the guide rods 43, and guides the U-shaped frame 42 through the fixing rods 45.

[0033] A transmission gear 47 is fixedly installed on one end of the plurality of threaded rods 46, a circular guide rail 48 is fixedly installed on one side of the plurality of hollow rings 22, two arc surface sliders 49 are slidably installed on the plurality of circular guide rails 48, wherein a transmission gear ring 5 is fixedly installed on one side of two adjacent arc surface sliders 49, one of the transmission gear rings 5 ​​is meshedly connected with four adjacent transmission gears 47, wherein a driving gear ring 51 is fixedly installed on the outer side wall of two adjacent arc surface sliders 49, wherein telescopic rods 52 are rotatably installed on three adjacent hollow rings 22, and first driving gears 53 are provided on the plurality of hollow rings 22, wherein two first driving gears 53 are fixedly connected to the fixed end of a telescopic rod 52, wherein one of the first driving gears 53 is fixedly connected to the telescopic end of a telescopic rod 52, and one of the first driving gears 53 is fixedly connected to the telescopic end of a telescopic rod 52, and The driving gear 53 is meshedly connected with a driving gear ring 51, and one end of the two lead screws 38 and the fixed ends of the two telescopic rods 52 are fixedly installed with synchronous wheels 54, wherein a synchronous belt 55 is installed between two adjacent synchronous wheels 54 for transmission. By driving the telescopic rod 52 to rotate, the telescopic rod 52 can rotate the first driving gear 53, and the first driving gear 53 can rotate the driving gear ring 51, and the driving gear ring 51 can make the arc surface slider 49 slide circumferentially on the circular guide rail 48, and the arc surface slider 49 rotates the transmission gear ring 5, and the transmission gear ring 5 can rotate the transmission gear 47, and the transmission gear 47 can rotate the threaded rod 46, and the corresponding two threaded rods 46 rotate synchronously in opposite directions, so that the four adjacent arc surface limit plates 41 move synchronously toward or away from the axial direction of the hollow ring 22.

[0034] The pre-installation mechanism 6 includes two first sliders 61 and two second sliders 62. The two operating tables 2 are provided with a slide groove 63. One of the first sliders 61 is slidably mounted at one end of the slide groove 63. One of the second sliders 62 is slidably mounted at the other end of the slide groove 63. One side of the two first sliders 61 is fixedly mounted with a first connecting rod 64. One end of one of the first connecting rods 64 is fixedly connected to the outer wall of a joint sleeve 21. Two second connecting rods 65 are fixedly mounted on one side of the two second sliders 62. One end of the four second connecting rods 65 and four of the empty The outer wall of the core ring 22 is fixedly connected, and a third connecting rod 651 is provided on one side of the two second sliders 62, and one end of the two third connecting rods 651 is fixedly connected to the outer wall of two of the hollow rings 22, and a U-shaped rod 652 is fixedly installed in the middle of the two second connecting rods 65, and one end of one U-shaped rod 652 is fixedly connected to one end of a hollow rod 23, and two tooth plates 66 are provided on one side of the two operating tables 2, and one end of the two tooth plates 66 is fixedly connected to the other side of the two first sliders 61, and one end of the other two tooth plates 66 is fixedly connected to the outer wall of the two second sliders 62. The other side is fixedly connected, one side of the two operating tables 2 is rotatably mounted with a first rotating shaft 67, one end of the two first rotating shafts 67 is fixedly mounted with a second driving gear 68, one of the second driving gears 68 is meshed and connected with two adjacent tooth plates 66, by driving the first slider 61 and the second slider 62 to slide toward or away from each other in the slide groove 63, the first slider 61 can make the joint sleeve 21 move synchronously through the first connecting rod 64, and the second slider 62 can make the three hollow rings 22 move synchronously through the second connecting rod 65 and the third connecting rod 651, so that the device The clamped hydraulic hose and the joint accessories in the joint sleeve 21 are moved closer to or farther away from each other. By setting a U-shaped rod 652, the second connecting rod 65 can make the hollow rod 23 move synchronously through the U-shaped rod 652. By driving the first rotating shaft 67 to rotate, the first rotating shaft 67 can rotate the second driving gear 68, and the second driving gear 68 can drive the two tooth plates 66 to move closer to or farther away from each other. By driving the two tooth plates 66 to move closer to or farther away from each other, the two tooth plates 66 can make the first slider 61 and the second slider 62 slide toward or away from each other in the slide groove 63.

[0035] A first motor 69 is fixedly installed on one side of the pre-installation table 1, and a rotating rod 7 is fixedly installed on the driving output end of the first motor 69. A square groove 71 is provided at one end of the rotating rod 7. A square block 72 is fixedly installed on the other end of the two first rotating shafts 67, and one of the square blocks 72 is movably contacted with the inner wall of the square groove 71. A limited retaining ring 73 is fixedly installed on one end of the two joint sleeves 21. A sliding groove 74 is provided on one side of the two second sliding sliders 62, and a sliding block 75 is slidably installed on one end of the two sliding grooves 74. The other end of one of the second connecting rods 65 is fixedly connected to the upper surface of a sliding block 75, and the other end of the two sliding grooves 74 is fixedly installed with a spring rod 76, and the telescopic end of one of the spring rods 76 is fixedly connected to one side of a sliding block 75. By turning on the first motor 69, the driving shaft of the first motor 69 can make the rotating The rod 7 rotates, and the rotating rod 7 can rotate the first rotating shaft 67 through the cooperation of the square groove 71 and the square block 72. By setting the square groove 71 and the square block 72, when the two operating tables 2 are flipped 180 degrees, there is always a square block 72 in contact with the inner wall of the square groove 71. By setting the limit ring 73, the sliding groove 74, the sliding block 75 and the spring rod 76, when one side of the frontmost hollow ring 22 contacts one side of the limit ring 73, as the three hollow rings 22 and the joint sleeve 21 continue to approach each other, the end of the hydraulic hose is horizontally inserted into the joint fitting in the joint sleeve 21, and the frontmost hollow ring 22 causes the sliding block 75 to slide horizontally in the sliding groove 74 through the third connecting rod 651, and the sliding block 75 squeezes the spring rod 76, causing the telescopic end of the spring rod 76 to shrink, so that the end of the hydraulic hose is completely inserted into the joint fitting.

[0036] The flipping assembly 8 includes a fixed roller 81, and the opposite sides of the two operating tables 2 are fixedly connected to the outer wall of the fixed roller 81. A second rotating shaft 82 is rotatably installed in the middle of the pre-installation table 1. The second rotating shaft 82 passes through the fixed roller 81 and is fixedly connected to the fixed roller 81. A second motor 83 is fixedly installed on the other side of the pre-installation table 1. The driving output end of the second motor 83 is fixedly connected to one end of the second rotating shaft 82. By turning on the second motor 83, the second motor 83 can rotate the second rotating shaft 82. The second rotating shaft 82 can flip the two operating tables 2 with the axis of the fixed roller 81 as the center through the fixed roller 81, and the inner wall limit assembly 3 and the outer wall limit assembly 4 follow the synchronous flipping.

[0037] Working principle: When the hydraulic hose in the hydraulic hose assembly needs to be assembled into the joint fitting, the operator first places the joint fitting in a joint sleeve 21, and sleeves the hydraulic hose on the outside of a hollow rod 23. At this time, the hydraulic hose passes through three hollow rings 22; Then, the operator manually rotates a knob 39, and the knob 39 rotates a lead screw 38, and the lead screw 38 moves the three movable plates 35 in the horizontal direction. The three movable plates 35 move the two vertically corresponding arc-shaped abutting plates 31 away from each other through the corresponding two stretching rods 37 and two connecting plates 34, until the outer walls of the six arc-shaped abutting plates 31 contact the inner wall of the hydraulic hose and abut the hydraulic hose, and then stop rotating the knob 39; At the same time, a lead screw 38 rotates a telescopic rod 52 through two synchronous wheels 54 and a synchronous belt 55, and a telescopic rod 52 rotates three first driving gears 53, and the three first driving gears 53 rotate three driving gear rings 51, and the three driving gear rings 51 cause the corresponding two arc surface sliders 49 to slide circumferentially on a circular guide rail 48, and the six arc surface sliders 49 rotate the three transmission gear rings 5, and the three transmission gear rings 5 ​​cause the corresponding four transmission gears 47 to rotate synchronously, and the multiple transmission gears 47 rotate the multiple threaded rods 46, and the multiple threaded rods 46 move the multiple arc surface limiting plates 41 through the multiple U-shaped frames 42, and the four adjacent arc surface limiting plates 41 move toward the axial direction of the hollow ring 22, and the opposite sides of the multiple arc surface limiting plates 41 contact the outer wall of the hydraulic hose and limit the hydraulic hose, and cooperate with the multiple arc surface clamping plates 31 to complete the clamping of the hydraulic hose; Subsequently, the operator turns on the first motor 69, and the driving shaft of the first motor 69 rotates the rotating rod 7, and the rotating rod 7 rotates a first rotating shaft 67 through a square groove 71 and a corresponding square block 72, and a first rotating shaft 67 rotates a second driving gear 68, and a second driving gear 68 drives two tooth plates 66 to approach each other, and the two tooth plates 66 make a first slider 61 and a second slider 62 slide toward each other in a corresponding slide groove 63, and a first slider 61 moves the joint fitting synchronously through the first connecting rod 64 and the joint sleeve 21, and a second slider 62 moves synchronously through two second connecting rods 65, a third connecting rod 651, three hollow rings 22 and the clamped hydraulic hose, and as the joint fitting and the hydraulic hose approach each other, the end of the hydraulic hose is horizontally inserted into the joint fitting, thereby conveniently realizing the pre-installation of the hydraulic hose and the joint fitting, facilitating the assembly of the small-mouth hydraulic hose, improving the assembly efficiency, saving time and labor, and reducing the scrap rate; When the pre-installation operation on one operating table 2 is completed, the operator turns on the second motor 83, and the second motor 83 rotates the second rotating shaft 82. The second rotating shaft 82 causes the two operating tables 2 to flip over with the axis of the fixed roller 81 as the center of the circle through the fixed roller 81. The pre-installed hydraulic hose and joint accessories are turned over synchronously, and the corresponding knob 39 is rotated in the opposite direction to release the clamping of the hydraulic hose. The hydraulic hose and joint accessories automatically fall down into the external collection box, so that the pre-installation and material collection of the hydraulic hose can be completed on the two operating tables 2, further improving the assembly efficiency.

[0038] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A small-diameter pipeline pre-installation device, comprising a pre-installation station (1), characterized in that: The pre-installation table (1) is a hollow structure. Two operating tables (2) are arranged inside the pre-installation table (1). One side of the two operating tables (2) is provided with a joint sleeve (21). One side of the two operating tables (2) is provided with three hollow rings (22). One side of the two operating tables (2) is provided with a hollow rod (23). One of the hollow rods (23) passes through three adjacent hollow rings (22) and is coaxial with the hollow rings (22). The three adjacent hollow rings (22) and a joint sleeve (21) are coaxial. An inner wall limit assembly (3) is provided on the hollow rod (23). An outer wall limit assembly (4) is provided on the hollow ring (22). Pre-installation mechanisms (6) are provided on the two operating tables (2) and the pre-installation table (1). A flip assembly (8) is provided between the pre-installation table (1) and the two operating tables (2).

2. A small-diameter pipeline pre-installation device as claimed in claim 1, characterized in that: The inner wall limit assembly (3) comprises a plurality of arc surface abutting plates (31), a plurality of evenly distributed ear blocks (32) are fixedly mounted on the hollow rod (23), a rotating shaft (33) is rotatably mounted between two adjacent ear blocks (32), and a connecting plate (34) is fixedly mounted on the outer walls of the plurality of rotating shafts (33), wherein one end of one of the connecting plates (34) is fixedly connected to the middle of a arc surface abutting plate (31).

3. A small-diameter pipeline pre-installation device as claimed in claim 2, characterized in that: A plurality of evenly distributed movable plates (35) are slidably disposed inside the two hollow rods (23), and two stretching rods (37) are hingedly mounted on the plurality of movable plates (35), wherein one end of one of the stretching rods (37) is hingedly connected to one end of a connecting plate (34), and a lead screw (38) is rotatably mounted inside the two hollow rods (23), wherein one of the lead screws (38) penetrates through three adjacent movable plates (35) and is threadedly rotatably connected to the movable plates (35), and a knob (39) is fixedly mounted on one end of each of the two lead screws (38).

4. A small-diameter pipeline pre-installation device as claimed in claim 3, characterized in that: Guide blocks (36) are fixedly mounted on both sides of the plurality of movable plates (35), and the guide blocks (36) are slidably connected to the inner wall of the hollow rod (23).

5. A small-diameter pipeline pre-installation device as claimed in claim 3, characterized in that: The outer wall limit assembly (4) comprises a plurality of arc surface limit plates (41), wherein four adjacent arc surface limit plates (41) are arranged in a ring-shaped array in a hollow ring (22), four U-shaped frames (42) are arranged inside each of the hollow rings (22), one end of one of the U-shaped frames (42) is fixedly connected to the outer wall of a arc surface limit plate (41), and four threaded rods (46) arranged in a ring-shaped array are rotatably mounted on each of the hollow rings (22), wherein one of the threaded rods (46) is threadably rotatably connected to a U-shaped frame (42).

6. A small-diameter pipeline pre-installation device as claimed in claim 5, characterized in that: A plurality of evenly distributed guide rods (43) are fixedly mounted on the inner walls of the plurality of hollow rings (22), a sliding sleeve (44) is slidably mounted on one end of the plurality of guide rods (43), and a fixing rod (45) is fixedly mounted on the outer walls of the plurality of sliding sleeves (44), wherein one end of two adjacent fixing rods (45) is fixedly connected to the other end of a U-shaped frame (42).

7. A small-diameter pipeline pre-installation device as claimed in claim 5, characterized in that: A transmission gear (47) is fixedly mounted on one end of the plurality of threaded rods (46), a circular guide rail (48) is fixedly mounted on one side of the plurality of hollow rings (22), two arc-surface sliders (49) are slidably mounted on the plurality of circular guide rails (48), a transmission gear ring (5) is fixedly mounted on one side of two adjacent arc-surface sliders (49), one of the transmission gear rings (5) is meshingly connected with four adjacent transmission gears (47), a driving gear ring (51) is fixedly mounted on the outer side walls of two adjacent arc-surface sliders (49), and a rotationally mounted drive gear ring (51) is mounted on three adjacent hollow rings (22). A telescopic rod (52) is provided, and a plurality of the hollow rings (22) are each provided with a first driving gear (53), wherein two of the first driving gears (53) are fixedly connected to a fixed end of a telescopic rod (52), one of the first driving gears (53) is fixedly connected to a telescopic end of a telescopic rod (52), one of the first driving gears (53) is meshingly connected to a driving gear ring (51), and one end of the two lead screws (38) and the fixed ends of the two telescopic rods (52) are fixedly mounted with a synchronous wheel (54), wherein a synchronous belt (55) is installed between two adjacent synchronous wheels (54).

8. A small-diameter pipeline pre-installation device as claimed in claim 1, characterized in that: The pre-installation mechanism (6) comprises two first sliders (61) and two second sliders (62). The two operating tables (2) are each provided with a slide groove (63). One of the first sliders (61) is slidably mounted at one end of a slide groove (63). One of the second sliders (62) is slidably mounted at the other end of the slide groove (63). A first connecting rod (64) is fixedly mounted on one side of the two first sliders (61). One end of one of the first connecting rods (64) is fixedly connected to the outer wall of a joint sleeve (21). Two second connecting rods (65) are fixedly mounted on one side of the two second sliders (62). One end of four of the second connecting rods (65) is fixedly connected to the outer walls of four of the hollow rings (22). A third connecting rod (651) is provided on one side of the two second sliders (62). The two third connecting rods (651) are fixedly mounted on one side of the two second sliders (62). One end of the (651) is fixedly connected to the outer wall of two hollow rings (22), wherein the middle parts of the two second connecting rods (65) are fixedly installed with U-shaped rods (652), wherein one end of one of the U-shaped rods (652) is fixedly connected to one end of a hollow rod (23), one side of the two operating tables (2) is provided with two tooth plates (66), wherein one end of the two tooth plates (66) is fixedly connected to the other side of the two first sliding blocks (61), and one end of the other two tooth plates (66) is fixedly connected to the other side of the two second sliding blocks (62), and one side of the two operating tables (2) is rotatably installed with a first rotating shaft (67), and one end of the two first rotating shafts (67) is fixedly installed with a second driving gear (68), wherein one of the second driving gears (68) is meshingly connected to two adjacent tooth plates (66).

9. A small-diameter pipeline pre-installation device as claimed in claim 8, characterized in that: A first motor (69) is fixedly mounted on one side of the pre-assembly table (1); a rotating rod (7) is fixedly mounted on the driving output end of the first motor (69); a square groove (71) is provided at one end of the rotating rod (7); a square block (72) is fixedly mounted on the other end of each of the two first rotating shafts (67); one of the square blocks (72) is in movably contact with the inner wall of the square groove (71); a limit stop ring (73) is fixedly mounted on one end of each of the two joint sleeves (21); a sliding groove (74) is provided on one side of each of the two second sliding blocks (62); a sliding block (75) is slidably mounted on one end of each of the two sliding grooves (74); the other end of each of the second connecting rods (65) is fixedly connected to the upper surface of a sliding block (75); a spring rod (76) is fixedly mounted on the other end of each of the two sliding grooves (74); a telescopic end of each of the spring rods (76) is fixedly connected to one side of a sliding block (75).

10. A small-diameter pipeline pre-installation device as claimed in claim 1, characterized in that: The turning assembly (8) comprises a fixed roller (81), the opposite sides of the two operating tables (2) are fixedly connected to the outer wall of the fixed roller (81), a second rotating shaft (82) is rotatably mounted in the middle of the pre-installation table (1), the second rotating shaft (82) passes through the fixed roller (81) and is fixedly connected to the fixed roller (81), and a second motor (83) is fixedly mounted on the other side of the pre-installation table (1), and a driving output end of the second motor (83) is fixedly connected to one end of the second rotating shaft (82).

Images