Welded steel pipe hydraulic forming equipment
By using a first lead screw and inner pressure plate to form a U-shaped structure in a welded steel pipe hydraulic forming equipment, combined with the annular die casting of a hydraulic cylinder and outer pressure plate, the problem of billet displacement was solved, achieving stable forming and efficient production.
Patent Information
- Application Number
- CN202520142763.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-01-22
AI Technical Summary
Existing hydraulic forming equipment is prone to displacement and bending during the die casting process of welded steel pipe blanks, which affects the quality and production efficiency of welded steel pipes.
The billet is die-cast into a U-shaped structure using a first lead screw and an inner pressure plate. The outer pressure plate is then driven by a hydraulic cylinder to die-cast it into a ring shape. The formed steel pipe is then pushed out using a second lead screw and a push plate. Stability is maintained by using a limiting rod and a movable groove to prevent deviation.
This improves the ease of forming and production efficiency of welded steel pipes, avoids the displacement of billets during the die casting process, and ensures the quality of steel pipes.
Smart Images
Figure CN223946549U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to welding steel pipe production technical field, concretely relates to welding steel pipe hydraulic forming equipment. BACKGROUND
[0002] Welding steel pipe refers to the steel pipe that is welded after being bent and deformed into round, square and other shapes, and the blank of which is steel plate or strip.
[0003] The prior art has the following deficiencies: the existing hydraulic forming equipment adopts a corresponding size of a die casting groove and a hydraulic plate to die cast the blank when the blank of the welding steel pipe is die cast, so that the blank is prone to deviation during the die casting process, and the inner side of the steel pipe lacks pressing, so that the steel pipe is prone to bending, which will affect the quality of the welding steel pipe and the production efficiency of the welding steel pipe.
[0004] The above information disclosed in the background section is only used to strengthen the understanding of the background of the present disclosure, and therefore it can include information that does not constitute prior art known to those of ordinary skill in the art. UTILITY MODEL CONTENT
[0005] The utility model discloses welding steel pipe hydraulic forming equipment, through the rotation of first screw rod, the inner pressing plate of semicircle can be pressed into U type structure with the blank in the die casting plate, then the outer pressing plate can be pressed into circular ring structure with the blank from U type structure through the work of hydraulic cylinder, can avoid the deviation of the blank during the die casting process, and the rotation of second screw rod makes the push plate push the formed welding steel pipe out of the inner side of the die casting plate, to solve the above deficiencies in the art.
[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: welding steel pipe hydraulic forming equipment, comprising fixing mechanism, further comprising:
[0007] Die casting mechanism is arranged on the inner side of the fixing mechanism and is used for die casting the blank of the welding steel pipe;
[0008] Pushing mechanism is arranged on one end of the fixing mechanism and is used for pushing the formed welding steel pipe out of the fixing mechanism;
[0009] The fixing mechanism comprises a die casting plate, and two fixed frames are fixedly installed at both ends of the top of the die casting plate;
[0010] The die casting mechanism comprises a first screw rod and an inner pressing plate, the first screw rod is rotatably installed on one side of the outer wall of one end of the die casting plate, a first motor is arranged at the top of the first screw rod, the inner pressing plate is arranged on the inner side of the die casting plate, and a traction plate is rotatably installed on one end of the outer wall of the inner pressing plate and is threadedly connected with the outer wall of the first screw rod.
[0011] The die-casting mechanism further comprises four hydraulic cylinders, the output ends of the four hydraulic cylinders are provided with outer pressing plates.
[0012] The pushing mechanism comprises a second screw rod, the second screw rod is arranged on the inner wall of one side of the die-casting plate, one end of the second screw rod is provided with a second motor, the outer side of the second screw rod is threadedly sleeved with a sliding block, and one side of the sliding block is fixedly installed with a pushing plate.
[0013] Preferably, the inner walls of the four fixing frames are all provided with movable grooves, the outer walls of the two sides of the outer pressing plates are both fixedly installed with movable seats at the two ends of the top portions, and the inner walls of the movable grooves are movably connected with the outer walls of the adjacent movable seats.
[0014] Preferably, the top portions of the four fixing frames are fixedly connected with the four hydraulic cylinders respectively, and the output ends of the four hydraulic cylinders respectively penetrate the inner walls of the top portions of the four movable grooves and are fixedly connected with the top portions of the adjacent movable seats.
[0015] Preferably, the inner wall of one side of the die-casting plate is provided with a mounting groove, the inner wall of the mounting groove is rotationally connected with the second screw rod, and the inner wall of the mounting groove is movably connected with the outer wall of the sliding block.
[0016] Preferably, the left vertical section of the inner wall of the die-casting plate is provided with a U-shaped structure, and the side of the outer wall of the end of the die-casting plate away from the first screw rod is fixedly installed with a limiting rod.
[0017] Preferably, the end of the inner pressing plate away from the traction plate is rotationally installed with a rotating plate, and the side of the rotating plate away from the inner pressing plate is movably connected with the outer wall of the limiting rod.
[0018] Preferably, the diameter size of the inner wall of the die-casting plate is the same as the diameter size of the arc surface of the bottom portion of the outer pressing plate, and the width size of the inner wall of the die-casting plate is the same as the width size of the outer pressing plate.
[0019] In the above technical scheme, the technical effects and advantages of the present application are provided.
[0020] 1、 through the first motor work makes the first screw rod rotation, further make semicircular inner compression plate can be blank in the die casting plate inside die casting into U type structure, then through the hydraulic cylinder work makes the outer compression plate can be U type structure blank top die casting inwards, make it from U type structure die casting into a circular ring structure, under the joint action of inner compression plate and outer compression plate, make the forming of welded steel pipe more convenient, can avoid the blank in the die casting forming process appears the situation of deviation, simultaneously the second motor work makes the second screw rod rotation, make the push plate can be formed from the die casting plate inside push out welded steel pipe, further make the device can conveniently carry out subsequent blank die casting forming work, can improve the production efficiency of welded steel pipe;
[0021] 2、 through the limiting rod can limit the movement of the rotating plate, further can limit the movement of the inner compression plate, simultaneously through disconnecting the connection between the rotating plate and the limiting rod makes the formed welded steel pipe can conveniently be pushed out from the die casting plate inside, the movable groove can limit the movement of the movable seat, make the outer compression plate keep stable during the movement, simultaneously the installation groove can limit the movement of the sliding block, make the push plate keep stable during the movement, make it can stably push out the formed welded steel pipe from the die casting plate inside. BRIEF DESCRIPTION OF DRAWINGS
[0022] In order to more clearly illustrate the technical scheme in the embodiments of the present application or prior art, the following will briefly introduce the drawings needed to be used in the embodiments, obviously, the drawings in the following description only some embodiments of the utility model are recorded, for the person skilled in the art, still can obtain other drawings according to these drawings.
[0023] Figure 1 It is the whole structure schematic diagram of the utility model.
[0024] Figure 2 It is the front view vertical section of the utility model.
[0025] Figure 3 It is the fixed mechanism perspective structure diagram of the utility model.
[0026] Figure 4 It is the die casting mechanism perspective structure explosion diagram of the utility model.
[0027] Figure 5 It is the pusher mechanism perspective structure diagram of the utility model.
[0028] BRIEF DESCRIPTION OF DRAWINGS
[0029] 1, fixed mechanism;101, die casting plate;102, fixed frame;103, movable groove;104, installation groove;
[0030] 2, die casting mechanism; 201, first screw rod; 202, first motor; 203, limit rod; 204, inner pressing plate; 205, traction plate; 206, rotating plate; 207, hydraulic cylinder; 208, movable seat; 209, outer pressing plate;
[0031] 3, pushing mechanism; 301, second screw rod; 302, second motor; 303, sliding block; 304, push plate. DETAILED DESCRIPTION
[0032] The utility model provides a hydraulic forming equipment for welded steel pipe as Figure 1 As shown in the figure, the hydraulic forming equipment for welded steel pipe comprises a fixing mechanism 1, further comprising:
[0033] A die casting mechanism 2 is arranged on the inner side of the fixing mechanism 1 and is used for die casting the blank of the welded steel pipe;
[0034] A pushing mechanism 3 is arranged at one end of the fixing mechanism 1 and is used for pushing the formed welded steel pipe out of the fixing mechanism 1.
[0035] In order to conveniently install and fix the die casting mechanism 2 and the pushing mechanism 3, as Figure 2 and Figure 3 shown, the fixing mechanism 1 comprises a die casting plate 101, two fixed racks 102 are fixedly installed at the top of both sides of the die casting plate 101, and the die casting plate 101 and the fixed racks 102 can install and fix the die casting mechanism 2 and the pushing mechanism 3, so that the die casting mechanism 2 and the pushing mechanism 3 can stably die cast the blank of the welded steel pipe;
[0036] In order to conveniently die cast the blank into the shape of the welded steel pipe, as Figure 2 and Figure 4 shown, the die casting mechanism 2 comprises a first screw rod 201 and an inner pressing plate 204, the first screw rod 201 is rotatably installed on one side of the outer wall of one end of the die casting plate 101, a first motor 202 is arranged at the top of the first screw rod 201, the inner pressing plate 204 is arranged on the inner side of the die casting plate 101, a traction plate 205 is rotatably installed on one end of the outer wall of the inner pressing plate 204 and is threadedly connected with the outer wall of the first screw rod 201, the die casting mechanism 2 further comprises four hydraulic cylinders 207, the four hydraulic cylinders 207 are arranged at the top of the four fixed racks 102, an outer pressing plate 209 is arranged at the output end of the four hydraulic cylinders 207, the first motor 202 works to make the first screw rod 201 rotate, so that the inner pressing plate 204 can die cast the blank towards the inner wall of the die casting plate 101, and then the outer pressing plate 209 can die cast the U-shaped structure blank into a circular ring structure through the hydraulic cylinders 207.
[0037] In order to conveniently push the formed welded steel pipe out of the inner side of the die casting plate 101, as Figure 2 and Figure 5As shown, the pushing mechanism 3 comprises a second lead screw 301 provided on the inner wall of one side of the die casting plate 101, one end of the second lead screw 301 is provided with a second motor 302, the outer side of the second lead screw 301 is sleeved with a sliding block 303, one side of the sliding block 303 is fixedly installed with a push plate 304, the second motor 302 works to make the second lead screw 301 rotate, and then the push plate 304 can push the formed welded steel pipe out of the opening of the die casting plate 101 away from the one end of the first lead screw 201.
[0038] In order to make the outer pressing plate 209 stable during the hydraulic process, as shown in Figures 2-4 As shown, the inner wall of the four fixed frames 102 is provided with a movable groove 103, the two ends of the top outer wall of the two sides of the outer pressing plate 209 are fixedly installed with a movable seat 208, the inner wall of the movable groove 103 is movably connected with the outer wall of the adjacent movable seat 208, the top of the four fixed frames 102 is fixedly connected with the four hydraulic cylinders 207 respectively, the output end of the four hydraulic cylinders 207 penetrates through the top inner wall of the four movable grooves 103 and is fixedly connected with the top of the adjacent movable seat 208, the movable groove 103 can limit the movement of the movable seat 208, so that the outer pressing plate 209 can be stable during the movement, and then it can stably press the blank with U-shaped structure into a circular ring structure.
[0039] In order to make the push plate 304 stable during the movement, as shown in Figures 2-3 and Figure 5 As shown, the inner wall of one side of the die casting plate 101 is provided with a mounting groove 104, the inner wall of the mounting groove 104 is rotatably connected with the second lead screw 301, and the inner wall of the mounting groove 104 is movably connected with the outer wall of the sliding block 303, the mounting groove 104 can limit the movement of the sliding block 303, so that the push plate 304 can stably push the formed welded steel pipe out of the inner side of the die casting plate 101.
[0040] In order to make the inner pressing plate 204 stable during the movement, and conveniently push the formed welded steel pipe out of the inner side of the die casting plate 101, as shown in Figures 2-4 As shown, the left vertical section of the inner wall of the die casting plate 101 is provided with a U-shaped structure, the outer wall of one side of the die casting plate 101 away from the one end of the first lead screw 201 is fixedly installed with a limiting rod 203, the one end of the inner pressing plate 204 away from the traction plate 205 is rotatably installed with a rotating plate 206, the outer wall of one side of the rotating plate 206 away from the inner pressing plate 204 is movably connected with the limiting rod 203, the rotating plate 206 and the limiting rod 203 are rotatably connected, which can limit the movement of the inner pressing plate 204, and by rotating the rotating plate 206, the rotating plate 206 can be rotated from the perpendicular state to the parallel state with the inner pressing plate 204, so that the opening of the one end of the die casting plate 101 away from the first lead screw 201 is opened, and then the push plate 304 can stably push the formed welded steel pipe out of the inner side of the die casting plate 101.
[0041] In order to make the blank be pressed and formed stably by the pressing mechanism 2, as shown in the figure, Figure 2 The inner wall diameter size of the pressing plate 101 is the same as the diameter size of the arc surface at the bottom of the outer pressing plate 209, the inner wall width size of the pressing plate 101 is the same as the width size of the outer pressing plate 209, and the diameter of the pressing plate 101 is the same as the diameter size at the bottom of the outer pressing plate 209, so that the blank can be stably formed inside the pressing plate 101.
[0042] Specifically, when the welded steel pipe is produced and processed, the blank is placed in the gap position between the four fixing frames 102, then the first motor 202 works to make the first lead screw 201 rotate, which in turn drives the traction plate 205 to move downward outside, which in turn drives the inner pressing plate 204 to move downward, which in turn presses the blank downward, and the limiting rod 203 can limit the movement of the rotating plate 206, which in turn limits the movement of the inner pressing plate 204, so that the inner pressing plate 204 remains stable during movement. With the movement of the inner pressing plate 204 towards the inside of the pressing plate 101, the blank also forms a U-shaped mechanism under the action of the inner pressing plate 204 of the semicircular mechanism and the inner wall of the pressing plate 101 of the U-shaped groove structure, and then the four hydraulic cylinders 207 work to make the four movable seats 208 move downward along the inner wall of the four movable grooves 103, which in turn drives the outer pressing plate 209 to move downward. With the movement of the outer pressing plate 209, the top of the U-shaped structure blank can be pressed. Since the bottom surface of the outer pressing plate 209 is provided with a circular arc surface with the same diameter as the inner wall of the pressing plate 101, the U-shaped structure blank forms a circular ring structure under the pressing action of the outer pressing plate 209;
[0043] When the pressing is completed, the four hydraulic cylinders 207 retract to drive the outer pressing plate 209 to move upward and separate from the circular ring blank, and then the first motor 202 works in reverse to make the inner pressing plate 204 slightly separate from the inner side bottom of the circular ring structure blank. Then the rotating plate 206 is rotated from the vertical state to the parallel state with the inner pressing plate 204, and then the second motor 302 works to make the second lead screw 301 rotate, so that the sliding block 303 can move along the inner wall of the mounting groove 104 towards the end close to the rotating plate 206, which in turn drives the push plate 304 to push the circular ring blank out from the inside of the pressing plate 101, so that the formed blank can be conveniently put into the subsequent welding section, and the device can conveniently perform subsequent blank pressing and forming work, thereby improving the production efficiency of the welded steel pipe. This embodiment specifically solves the problem that the blank forming process of the welded steel pipe is prone to deviation in the prior art, which affects the production efficiency of the welded steel pipe.
[0044] The above has only described certain exemplary embodiments of the present application by way of illustration, and it is needless to say that the described embodiments can be modified in various ways without departing from the spirit and scope of the present application for those skilled in the art. Therefore, the above drawings and descriptions are illustrative in nature, and should not be understood as limiting the scope of protection of the claims of the present application.
Claims
1. Hydraulic forming equipment for welded steel pipes, comprising a fixing mechanism (1), characterized in that, Also include: Die casting mechanism (2) is arranged in the inner side of fixed mechanism (1), be used for carrying out die casting forming to the blank of welded steel pipe; Pushing mechanism (3) is arranged in one end of fixed mechanism (1), is used for pushing the formed welded steel pipe from the inside of fixed mechanism (1) out; The fixed mechanism (1) includes a die casting plate (101), and both ends of the top of the die casting plate (101) are fixedly installed with a fixed frame (102). The die casting mechanism (2) includes a first lead screw (201) and an inner pressing plate (204), the first lead screw (201) is rotatably installed on one side of the outer wall of one end of the die casting plate (101), the first lead screw (201) is provided with a first motor (202) on the top, the inner pressing plate (204) is arranged on the inner side of the die casting plate (101), and the outer wall of one end of the inner pressing plate (204) is rotatably installed with a traction plate (205) which is threadedly connected with the outer wall of the first lead screw (201). The die casting mechanism (2) further includes four hydraulic cylinders (207), four said hydraulic cylinders (207) are arranged on the top of four fixed frames (102), and the output end of four said hydraulic cylinders (207) is provided with an outer pressing plate (209). The pushing mechanism (3) includes a second lead screw (301), the second lead screw (301) is arranged on the inner wall of one side of the die casting plate (101), the second lead screw (301) is provided with a second motor (302) on one end, and the outer side of the second lead screw (301) is threadedly sleeved with a sliding block (303), and the one side of the sliding block (303) is fixedly installed with a push plate (304).
2. The hydraulic forming apparatus for welding steel pipes according to claim 1, characterized by: The inner wall of the four said fixed frames (102) is provided with a movable groove (103), the outer wall of both ends of the top of the outer pressing plate (209) is fixedly installed with a movable seat (208), and the inner wall of the movable groove (103) is movably connected with the outer wall of the adjacent movable seat (208).
3. The hydraulic forming apparatus for welding steel pipe according to claim 2, characterized by: The top of the four said fixed frames (102) is fixedly connected with the four hydraulic cylinders (207), and the output end of the four hydraulic cylinders (207) penetrates the inner wall of the top of the four movable grooves (103) and is fixedly connected with the top of the adjacent movable seat (208).
4. The hydraulic forming apparatus for welding steel pipe according to claim 1, characterized by: The inner wall of one side of the die casting plate (101) is provided with a mounting groove (104), the inner wall of the mounting groove (104) is rotatably connected with the second lead screw (301), and the inner wall of the mounting groove (104) is movably connected with the outer wall of the sliding block (303).
5. The hydraulic forming apparatus for welding steel pipe according to claim 1, characterized by: The left vertical section of the inner wall of the die casting plate (101) is provided with a U-shaped structure, and the outer wall of one end of the die casting plate (101) away from the first lead screw (201) is fixedly installed with a limiting rod (203).
6. The hydraulic forming apparatus for welding steel pipe according to claim 5, characterized by: The one end of the inner pressing plate (204) away from the traction plate (205) is rotatably installed with a rotating plate (206), and the side of the rotating plate (206) away from the inner pressing plate (204) is movably connected with the outer wall of the limiting rod (203).
7. The hydraulic forming apparatus for welding steel pipe according to claim 1, characterized by: The diameter size of the inner wall of the die casting plate (101) is the same as the diameter size of the arc surface of the bottom of the outer pressing plate (209), and the width size of the inner wall of the die casting plate (101) is the same as the width size of the outer pressing plate (209).