Auxiliary device for hydraulic bulging of corrugated pipe

Abstract

The utility model relates to the technical field of corrugated pipe bulging, and discloses an auxiliary device for hydraulic bulging of corrugated pipes, which comprises a bulging worktable, two vertical plates are fixedly mounted on the upper surface of the bulging worktable, four guide rods are fixedly mounted on opposite surfaces of the two vertical plates, a bulging mechanism is arranged on the bulging worktable, and a hydraulic cylinder is arranged on the bulging mechanism. The bulging mechanism comprises a hydraulic press, a hydraulic rod, a movable plate, a conical ejector block, two first sliding grooves, two guide rails, a second sliding groove, a bulging die, six piston rods, six springs, six dampers, an n-shaped frame, three electric heating wires, three fans, a water conveying hose, a water pump and a spraying head. The corrugated pipe can be preheated through the electric heating wire and the fan, subsequent hydraulic bulging is facilitated, cooling water can be sprayed to the surface of the corrugated pipe through the water pump, the water conveying hose and the spraying head after bulging so as to cool the corrugated pipe, and the corrugated pipe can be conveniently shaped.

Description

TECHNICAL FIELD

[0001] The utility model relates to a corrugated pipe expansion technology field, specifically for a kind of auxiliary device for corrugated pipe hydraulic expansion. BACKGROUND

[0002] When processing corrugated pipe, the processing part of hydraulic expander is inserted into the processed corrugated pipe to extrude hydraulic oil, increase the pressure of hydraulic oil, and the side wall of corrugated pipe can be extruded and formed after the pressure of hydraulic oil increases.The traditional hydraulic expander includes a machine tool, and the machine tool is provided with a hydraulic system to control the expansion of the head.

[0003] The existing corrugated pipe is expanded at normal temperature, and the corrugated pipe wall is hard, so the plasticity is poor during expansion, which may cause cracks on the surface of the corrugated pipe, and even damage, therefore, the auxiliary device for corrugated pipe hydraulic expansion is provided. SUMMARY

[0004] (I) Technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides an auxiliary device for corrugated pipe hydraulic expansion, which solves the problem of inconvenient corrugated pipe hydraulic expansion.

[0006] (II) Technical scheme

[0007] To achieve the above-mentioned purpose of facilitating corrugated pipe hydraulic expansion, the utility model provides the following technical scheme: an auxiliary device for corrugated pipe hydraulic expansion, comprising an expansion workbench, two vertical plates are fixedly installed on the upper surface of the expansion workbench, and four guide rods are fixedly installed on the opposite surfaces of the two vertical plates.

[0008] Among them, expansion mechanism is arranged on expansion workbench, expansion mechanism includes hydraulic device, hydraulic rod, moving plate, conical top block, two first sliding grooves, two guide rails, second sliding groove, expansion die, six piston rods, six springs, six dampers, n-shaped frame, three electric heating wires, three fans, water delivery hose, water pump, spray head, filter plate and water storage tank.

[0009] Preferably, the hydraulic device is fixedly installed on the left surface of the vertical plate, the hydraulic rod is slidably sleeved on the inner surface of the hydraulic device, and the right end of the hydraulic rod penetrates out of the right surface of the vertical plate.

[0010] Among them, moving plate is fixedly installed on the right end of hydraulic rod, and moving plate is slidably sleeved on the outer surface of four guide rods.

[0011] Preferably, six second sliding grooves are opened in the right surface of the vertical plate, and six expansion dies are slidably sleeved in the inner walls of the six second sliding grooves.

[0012] Six piston rods are fixedly installed on the opposite sides of the six expansion dies respectively, six springs are fixedly installed on the opposite sides of the six piston rods respectively, six dampers are slidably sleeved on the outer surfaces of the six piston rods respectively, and the six dampers are fixedly installed in the inner walls of the six second sliding grooves respectively.

[0013] Preferably, two first sliding grooves are arranged on the two sides of the expansion workbench respectively, and two guide rails are fixedly installed in the inner walls of the two first sliding grooves respectively.

[0014] Preferably, the two vertical rods of the n-shaped frame are slidably sleeved on the outer surfaces of the two guide rails.

[0015] Preferably, three fans are fixedly installed on the opposite sides of the n-shaped frame respectively, and three electric heating wires are fixedly installed on the opposite sides of the three vertical plates of the n-shaped frame.

[0016] Preferably, the filter plate is fixedly installed on the upper surface of the expansion workbench, the water storage tank is fixedly installed in the inner wall of the expansion workbench, and the water storage tank is installed in correspondence with the filter plate.

[0017] Preferably, the water pump is arranged on the outer surface of the water conveying hose, and the water pump is fixedly installed on the rear surface of the expansion workbench.

[0018] Preferably, the spraying head is fixedly installed on the output end of the water conveying hose, and the spraying head is fixedly installed on the right surface of the horizontal plate of the n-shaped frame.

[0019] (Three) beneficial effects

[0020] Compared with the prior art, the utility model provides an auxiliary device for corrugated pipe hydraulic expansion, which has the following beneficial effects:

[0021] 1. The auxiliary device for corrugated pipe hydraulic expansion can preheat the corrugated pipe through the electric heating wire and the fan when the corrugated pipe is subjected to hydraulic expansion, facilitates subsequent hydraulic expansion, and can spray cooling water to the surface of the corrugated pipe through the water pump, the water conveying hose and the spraying head after expansion, so as to facilitate the setting of the corrugated pipe.

[0022] 2. The auxiliary device for corrugated pipe hydraulic expansion can buffer through the elastic potential energy of the spring and the damper when the expansion die is expanded, so as to avoid the corrugated pipe being cracked due to the rapid movement of the expansion die, and improve the production quality of the expansion pipe. ACCURACY

[0023] Figure 1 It is a structure schematic view of the auxiliary device for corrugated pipe hydraulic expansion.

[0024] Figure 2The utility model discloses an expansion workbench structure schematic diagram;

[0025] Figure 3 The utility model discloses an expansion workbench structure schematic diagram; Figure 2 The utility model discloses an expansion workbench structure schematic diagram;

[0026] Figure 4 The utility model discloses an expansion workbench structure schematic diagram;

[0027] Figure 5 The utility model discloses an expansion workbench structure schematic diagram.

[0028] In the drawing: 1, expansion workbench, 2, vertical board, 3, guide rod, 4, hydraulic device, 5, hydraulic rod, 6, moving plate, 7, conical top block, 8, first sliding groove, 9, guide rail, 10, second sliding groove, 11, expansion die, 12, piston rod, 13, spring, 14, damper, 15, n-shaped frame, 16, electric heating wire, 17, fan, 18, water delivery hose, 19, water pump, 20, shower head, 21, filter plate, 22, water storage tank. Specific implementation

[0029] The technical scheme in the embodiments of the utility model will be apparently and completely described below with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the range of the utility model protection.

[0030] Please refer to Figures 1-5 The utility model provides a kind of new technical scheme: a kind of auxiliary device for bellows hydraulic expansion, including expansion workbench 1, the upper surface of expansion workbench 1 is fixedly installed with two vertical boards 2, the opposite surface of two vertical boards 2 is fixedly installed with four guide rods 3;

[0031] Among them, expansion workbench 1 is provided with expansion mechanism, and expansion mechanism includes hydraulic device 4, hydraulic rod 5, moving plate 6, conical top block 7, two first sliding grooves 8, two guide rails 9, second sliding groove 10, expansion die 11, six piston rods 12, six springs 13, six dampers 14, n-shaped frame 15, three electric heating wires 16, three fans 17, water delivery hose 18, water pump 19, shower head 20, filter plate 21 and water storage tank 22.

[0032] Further, hydraulic device 4 is fixedly installed on the left surface of vertical board 2, hydraulic rod 5 is slidably sleeved on the inner surface of hydraulic device 4, and the right end of hydraulic rod 5 penetrates out of the right surface of vertical board 2;Among them, moving plate 6 is fixedly installed at the right end of hydraulic rod 5, and moving plate 6 is slidably sleeved on the outer surface of four guide rods 3.

[0033] Further, six second sliding grooves 10 are arranged on the right surface of the vertical plate 2, and six bulging dies 11 are respectively sleeved on the inner walls of the six second sliding grooves 10;

[0034] Among them, six piston rods 12 are respectively fixedly installed on the opposite surfaces of the six bulging dies 11, six springs 13 are respectively fixedly installed on the opposite surfaces of the six piston rods 12, six dampers 14 are respectively sleeved on the outer surfaces of the six piston rods 12, and the six dampers 14 are respectively fixedly installed on the inner walls of the six second sliding grooves 10.

[0035] Further, two first sliding grooves 8 are respectively arranged on the two sides of the bulging workbench 1, and two guide rails 9 are respectively fixedly installed on the inner walls of the two first sliding grooves 8;

[0036] Among them, the two vertical rods of the n-shaped frame 15 are sleeved on the outer surfaces of the two guide rails 9.

[0037] Further, three fans 17 are respectively fixedly installed on the opposite surfaces of the n-shaped frame 15, and three electric heating wires 16 are respectively fixedly installed on the opposite surfaces of the three vertical plates of the n-shaped frame 15.

[0038] Further, a filter plate 21 is fixedly installed on the upper surface of the bulging workbench 1, and a water storage tank 22 is fixedly installed in the inner wall of the bulging workbench 1, and the water storage tank 22 is installed in correspondence with the filter plate 21;

[0039] Among them, the input end of the water conveying hose 18 is connected with the water storage tank 22, the water pump 19 is arranged on the outer surface of the water conveying hose 18, and the water pump 19 is fixedly installed on the rear surface of the bulging workbench 1;

[0040] Among them, the spray head 20 is fixedly installed on the output end of the water conveying hose 18, and the spray head 20 is fixedly installed on the right surface of the horizontal plate of the n-shaped frame 15;

[0041] The auxiliary device for the bellows hydraulic expansion uses, through the bellows is equipped in the outer surface of six expansion dies 11, at this time through the external power supply to the electric heating wire 16 and the fan 17, at this time the electric heating wire 16 generates heat, and the fan 17 blows hot air to the surface of the bellows and softens it, and the n-shaped frame 15 can be driven to move by the guide rail 9, to soften the whole bellows, at this time, the hydraulic device 4 is started, the hydraulic device 4 is operated to output power to the output end fixedly installed moving plate 6, so that it moves to the right, the moving plate 6 slides to the right on the outer surface of the four guide rods 3, at the same time, the moving plate 6 drives the conical top block 7 fixedly installed on the positive surface to move to the right, at this time, the conical top block 7 is displaced between the six expansion dies 11, and applies opposite pushing force to the six expansion dies 11, to expand the pipe, when expanding the pipe, the six expansion dies 11 apply opposite pushing force to the six piston rods 12, the six piston rods 12 apply pressure to the six springs 13, so that they shrink, the six piston rods 12 slowly move in the inner surface of the six dampers 14, the damper 14 in the utility model is a hydraulic damper, which consumes energy through damping oil and damping hole, so as to slow down or prevent the process of mechanical movement, and then form a certain buffer, so as to avoid the situation that the bellows is broken due to moving too fast, after the pipe expansion is completed, the water pump 19 is started, the water pump 19 pumps out the water in the water storage tank 22, and outputs it to the spray head 20 through the water supply hose 18, so that it is sprayed from the spray head 20 to the surface of the bellows and cooled;

[0042] The auxiliary device for the bellows hydraulic expansion, when the bellows is hydraulically expanded, the bellows can be preheated by the electric heating wire 16 and the fan 17, so that the subsequent hydraulic expansion is facilitated, and after expansion, the cooling water can be sprayed to the surface of the bellows by the water pump 19, the water supply hose 18 and the spray head 20, so that the bellows is cooled and shaped, the auxiliary device for the bellows hydraulic expansion, when the expansion die 11 expands the pipe, the spring 13 can be buffered by its elastic potential energy and the damper 14, so that the situation that the bellows is broken due to the expansion die 11 moving too fast is avoided, and the production quality of the pipe expansion is improved.

[0043] Working principle: the auxiliary device for bellows hydraulic expansion uses, through the bellows set in the outer surface of six expansion die 11, at this time through the external power supply to the electric heating wire 16 and fan 17 power supply, at this time electric heating wire 16 heating, and fan 17 hot air blowing to the surface of the bellows on its softening, and can be driven by guide rail 9 n-shaped frame 15 moves, to the whole bellows softening, at this time through the start of hydraulic 4, hydraulic 4 through the operation of power output to the output end fixedly installed moving plate 6, make it move to the right, moving plate 6 in the outer surface of four guide rod 3 right slide, at the same time moving plate 6 drive positive surface fixedly installed conical top block 7 move to the right, at this time conical top block 7 displacement between six expansion die 11, and six expansion die 11 exert opposite side push force, carry out pipe expansion, in the pipe expansion six expansion die 11 six piston rod 12 exert opposite side push force, six piston rod 12 six spring 13 exerts pressure, make it shrink, six piston rod 12 in six damper 14 inner surface slowly move, the damper 14 in the utility model is hydraulic damper, hydraulic damper will be through damping oil and damping hole to consume energy, so as to slow down or prevent the process of mechanical movement, further form certain buffer, can avoid the situation of moving too fast and bellows burst, after pipe expansion, through the start of water pump 19, water pump 19 bellows in water tank 22 in the water is extracted, and through water hose 18 output to the shower head 20 on it, make it from the shower head 20 spray to the surface of the bellows on its cooling treatment.

[0044] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An auxiliary device for hydraulic bulging of a bellows, comprising a bulging workbench (1), two vertical plates (2) being fixedly mounted on the upper surface of the bulging workbench (1), characterized in that: Four guide rods (3) are fixedly mounted on opposite surfaces of the two vertical plates (2); The bulging workbench (1) is provided with a bulging mechanism, which comprises a hydraulic press (4), a hydraulic rod (5), a movable plate (6), a conical top block (7), two first slide grooves (8), two guide rails (9), a second slide groove (10), a bulging die (11), six piston rods (12), six springs (13), six dampers (14), an N-shaped frame (15), three electric heating wires (16), three fans (17), a water hose (18), a water pump (19), a spray head (20), a filter plate (21) and a water storage tank (22).

2. The auxiliary device for hydraulic bulging of a bellows according to claim 1, characterized in that: The hydraulic press (4) is fixedly mounted on the left surface of the vertical plate (2), the hydraulic rod (5) is slidably sleeved on the inner surface of the hydraulic press (4), and the right end of the hydraulic rod (5) passes through the right surface of the vertical plate (2); The movable plate (6) is fixedly mounted on the right end of the hydraulic rod (5), and the movable plate (6) is slidably sleeved on the outer surfaces of the four guide rods (3).

3. The auxiliary device for hydraulic bulging of a bellows according to claim 1, characterized in that: Six of the second chutes (10) are provided on the right surface of the vertical plate (2), and six bulging dies (11) are respectively slidably sleeved on the inner walls of the six second chutes (10); Among them, six piston rods (12) are fixedly installed on the opposite sides of six expansion dies (11), six springs (13) are fixedly installed on the opposite sides of six piston rods (12), six dampers (14) are slidably sleeved on the outer surfaces of the six piston rods (12), and the six dampers (14) are fixedly installed in the inner walls of six second slide grooves (10).

4. The auxiliary device for hydraulic bulging of a bellows according to claim 1, characterized in that: The two first chutes (8) are respectively opened on both sides of the bulging workbench (1), and the two guide rails (9) are respectively fixedly installed in the inner walls of the two first chutes (8); The two upright poles of the N-shaped frame (15) are slidably sleeved on the outer surfaces of the two guide rails (9).

5. The auxiliary device for hydraulic bulging of a bellows according to claim 1, characterized in that: The three fans (17) are respectively fixedly mounted on opposite sides of the n-shaped frame (15), and the three electric heating wires (16) are respectively fixedly mounted on opposite sides of the three vertical plates of the n-shaped frame (15).

6. The auxiliary device for hydraulic bulging of a bellows according to claim 1, characterized in that: The filter plate (21) is fixedly mounted on the upper surface of the bulging workbench (1), and the water storage tank (22) is fixedly mounted in the inner wall of the bulging workbench (1), with the water storage tank (22) and the filter plate (21) being mounted correspondingly; The input end of the water delivery hose (18) is connected to the water storage tank (22), the water pump (19) is arranged on the outer surface of the water delivery hose (18), and the water pump (19) is fixedly mounted on the rear surface of the bulging workbench (1); Wherein, the spray head (20) is fixedly mounted on the output end of the water delivery hose (18), and the spray head (20) is fixedly mounted on the right surface of the horizontal plate of the n-shaped frame (15).

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