High-strength steel pipe extrusion forming equipment for passenger car

Abstract

The invention relates to the technical field of steel pipe forming, and discloses passenger car high-strength steel pipe extrusion forming equipment which comprises a threaded extrusion mechanism and a hydraulic telescopic shearing mechanism. A longitudinal hollow shell which is fixedly mounted at the bottom of the working table plate and is in a hollow state, and a piston body which is placed in the longitudinal hollow shell and moves upwards after being subjected to liquid pressure are arranged in the longitudinal hollow shell; the longitudinal telescopic rod longitudinally moves along with the piston body; and the rectangular shearing plate moves along with the longitudinal telescopic rod and can shear the steel pipe. According to the high-strength steel pipe extrusion forming equipment for the passenger car, the ends of two or more steel pipes can be extruded, so that the working effect of the equipment is improved, when one end of each steel pipe is of a flat structure, the device effectively and rapidly cuts off the flat part through the shearing technology, and the working efficiency is improved. And therefore, the phenomenon that the yield is reduced is reduced, and the working efficiency of equipment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of steel pipe forming, in particular to high-strength steel pipe extrusion forming equipment for passenger cars. Background Art

[0002] During the processing of stainless steel pipes, multiple stainless steel pipes need to be spliced ​​and installed to form a stable structure. During this process, the stainless steel pipes need to be extruded to make their two ends flat, so as to facilitate splicing and installation. However, the current stainless steel pipe extrusion forming equipment often manually puts the stainless steel pipe into the extrusion forming equipment, and then manually extrude and form it through the lever structure in the equipment. After extrusion forming, it needs to be transported and then cut and punched, which leads to low processing efficiency and waste of labor.

[0003] To this end, the Chinese patent with the publication number "CN114289610A" has published "an automatic extrusion molding device for stainless steel pipes", whose main structure includes a base, a support frame fixedly connected to the base, a folding rod fixedly connected to the top of the support frame, a first motor fixedly connected to the folding rod, and a molding mechanism fixedly connected to the output end of the first motor; the molding mechanism includes a first reciprocating screw coaxially fixedly connected to the first motor, a first nut threadedly connected to the side wall of the first reciprocating screw, a plurality of first push rods fixedly connected to the side wall of the first nut, an extrusion block fixedly connected to the plurality of first push rods, a first limit rod fixedly connected to the side wall of the first nut, and an auxiliary mechanism fixedly connected to the side wall of the first reciprocating screw. In the automatic extrusion molding device for stainless steel pipes, the extrusion block moves downward, and the extrusion block will contact the surface of one end of the two stainless steel pipes that are close to each other, so that one end of the two stainless steel pipes is extruded and molded synchronously, and one end of the stainless steel pipe after extrusion molding has a flat structure.

[0004] However, when the above-mentioned automatic stainless steel pipe extrusion forming equipment is actually working, after the steel pipe is extruded into a flat structure, it is necessary to control the equipment to drive the steel pipe to rotate 360°, and then perform the edge cutting work. This process will lead to a decrease in the working efficiency of the equipment. At the same time, during the rotation process, the steel pipe is prone to displacement, which causes the steel pipe cutting position to be misaligned, resulting in a decrease in the yield of the finished product. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a high-strength steel pipe extrusion forming equipment for passenger cars. First, it can extrude the ends of more than two steel pipes, thereby improving the working effect of the equipment. When one end of the steel pipe is in a flat structure, the device uses shearing technology to effectively and quickly cut off the flat part, thereby combining the extrusion and cutting work of the steel pipe to reduce the decline in yield and improve the working efficiency of the equipment, thereby solving the above-mentioned technical problems.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-strength steel pipe extrusion forming equipment for passenger cars, comprising a workbench with support legs fixedly installed at the bottom, a No. 1 shaft body mounting hole arranged in the center of the workbench, and a driving motor fixedly installed below the workbench through a motor fixed shell, and also comprising a threaded extrusion mechanism, in which a lower fixed extrusion plate fixedly installed on the upper surface of the workbench is arranged, an upper movable extrusion plate that cooperates with the lower fixed extrusion plate and can extrude and shape the steel pipe, an externally threaded rod that cooperates with the threaded structure and can make the upper movable extrusion plate longitudinally displaced relative to the lower fixed extrusion plate when the rotor of the driving motor rotates, and a longitudinal limit rod that can prevent the lower fixed extrusion plate and the upper movable extrusion plate from lateral displacement; and a hydraulic telescopic shearing mechanism, in which a longitudinal hollow shell that is fixedly installed at the bottom of the workbench and is hollow inside is arranged, a piston body that is placed inside the longitudinal hollow shell and moves upward after being subjected to liquid pressure, a longitudinal telescopic rod that moves longitudinally with the piston body, and a rectangular shearing plate that moves with the longitudinal telescopic rod and can shear the steel pipe.

[0007] Preferably, the threaded extrusion mechanism comprises a lower fixed extrusion plate, an upper movable extrusion plate and an externally threaded rod, the bottom of the lower fixed extrusion plate is fixedly installed on the upper surface of the worktable, the upper movable extrusion plate is located directly above the lower fixed extrusion plate, and the lower fixed extrusion plate and the upper movable extrusion plate are provided with corresponding limiting movable cavities inside, and a limiting slide plate capable of longitudinally moving along the limiting movable cavity is placed inside each of the two upper and lower symmetrical limiting movable cavities, and the two upper and lower symmetrical limiting slide plates are connected by a longitudinal limiting rod running through the lower fixed extrusion plate and the upper movable extrusion plate, and the center of the lower fixed extrusion plate and the upper movable extrusion plate Corresponding lower threaded through holes and internal threaded holes are respectively provided at the lower fixed extrusion plate and the upper movable extrusion plate, and pipeline reserved grooves are respectively provided on both sides of the lower threaded through hole and the internal threaded hole, one end of the pipeline reserved groove is in an open state, and the other end is a solid structure, externally threaded rods are placed in the lower threaded through hole and the internal threaded hole, and the externally threaded rods are connected to the upper movable extrusion plate through a threaded structure, and a rotating cap with an integral structure therewith is provided at the top end of the externally threaded rod, and a No. 2 rotating shaft passing through the No. 1 shaft body mounting hole is fixedly installed at the bottom end of the externally threaded rod, and the shaft body of the No. 2 rotating shaft is fixedly installed in the No. 1 shaft body mounting hole through a bearing.

[0008] Preferably, the structural radius of the limiting slide plate matches the structural radius of the limiting movable cavity, and the structural radius of the limiting slide plate is greater than the structural radius of the longitudinal limiting rod.

[0009] Preferably, the thread structure includes an internal thread structure arranged in the lower threaded through hole and an external thread structure arranged at the rod body of the external threaded rod, and the internal thread structure matches the external thread structure.

[0010] Preferably, the hydraulic telescopic shearing mechanism includes a longitudinal hollow shell, the upper surface of the longitudinal hollow shell is provided with an upper fixed plate which is an integral structure with the longitudinal hollow shell and fixedly mounted on the bottom of the workbench, the interior of the longitudinal hollow shell is provided with a longitudinal component active cavity, the bottom end of the longitudinal hollow shell is provided with a liquid docking channel connecting the external space and the bottom end of the longitudinal component active cavity, the top of the longitudinal hollow shell is provided with a No. 2 shaft body through hole connecting the external space and the top of the longitudinal component active cavity, the longitudinal hollow shell is provided with a piston body which can move axially along the longitudinal component active cavity inside the longitudinal component active cavity, the upper end surface of the piston body is fixedly mounted with a longitudinal telescopic rod which passes through the No. 2 shaft body through hole, the longitudinal telescopic rod is provided with a No. 2 coil spring on the outer periphery of the rod body located inside the longitudinal component active cavity, the rod body of the longitudinal telescopic rod passes through the plate body of the workbench, and a rectangular shear plate whose one side abuts against the side surface of the lower fixed extrusion plate is fixedly mounted on the top.

[0011] Preferably, the initial length of the No. 2 coil spring is greater than the depth of the movable cavity of the longitudinal component, and the lower end surface of the No. 2 coil spring abuts against the upper surface of the piston body, and the lower end surface abuts against the top of the movable cavity of the longitudinal component.

[0012] Preferably, it also includes a torque resistance control mechanism, which is internally provided with a hollow disk body capable of driving the second rotating shaft to rotate, an inner rotating column rotating along with the rotor of the driving motor, and an arc-shaped contact plate capable of linking the hollow disk body and the inner rotating column by friction.

[0013] Preferably, the torque resistance control mechanism includes a hollow disk body, an inner rotating column and a No. 1 rotating shaft, the upper end surface of the hollow disk body is provided with a No. 1 shaft body fixing groove for fixing and installing the No. 2 rotating shaft, the center of the hollow disk body is provided with a cylindrical component mounting cavity, the center of the bottom end of the hollow disk body is provided with a No. 2 shaft body mounting hole, the shaft body of the No. 1 rotating shaft is installed inside the No. 2 shaft body mounting hole through a bearing, the center of the cylindrical component mounting cavity is provided with an inner rotating column, the bottom center of the inner rotating column is provided with a No. 2 shaft body fixing groove for installing the No. 1 rotating shaft, the bottom end of the No. 1 rotating shaft is fixedly connected to the rotor end of the driving motor, The hollow disk body is provided with a plurality of circular array-type transverse component movable cavities on the periphery of the cylindrical component mounting cavity, the transverse component movable cavities and the circumferential side surfaces of the cylindrical component mounting cavity are connected through a No. 1 shaft body through-hole, the hollow disk body is provided with an inner movable plate capable of axially moving along the cylindrical component mounting cavity inside the cylindrical component mounting cavity, a No. 1 coil spring is provided at one end of the inner movable plate, a connecting shaft body penetrating the No. 1 shaft body through-hole is fixedly installed at the other end of the inner movable plate, and an arc-shaped resistance plate that resists the circumferential surface of the inner rotating cylinder is fixedly installed at one end of the connecting shaft body located inside the cylindrical component mounting cavity.

[0014] Preferably, one end of the No. 1 coil spring abuts against one end surface of the inner movable plate, and the other end abuts against one end surface of the movable cavity of the transverse component, and the No. 1 coil spring is in a compressed state.

[0015] Preferably, the structural radius of the inner concave surface of the arc-shaped contact plate matches the structural radius of the inner rotating column.

[0016] Compared with the prior art, the present invention provides a high-strength steel pipe extrusion molding equipment for passenger cars, which has the following beneficial effects: It is capable of extruding the ends of more than two steel pipes, thereby improving the working effect of the equipment. When one end of the steel pipe is in a flat structure, the device uses shearing technology to effectively and quickly cut off the flat part, thereby combining the extrusion and cutting work of the steel pipe to reduce the decline in yield and improve the working efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A perspective view of the present invention; Figure 2 It is a three-dimensional cross-sectional view of the present invention at a first viewing angle; Figure 3 is a three-dimensional cross-sectional view of the present invention at a second viewing angle; Figure 4 It is a three-dimensional cross-sectional view of the threaded extrusion mechanism of the present invention at a first viewing angle; Figure 5It is a three-dimensional cross-sectional view of the threaded extrusion mechanism of the present invention at a second viewing angle; Figure 6 It is a three-dimensional cross-sectional view of the hydraulic telescopic shearing mechanism of the present invention; Figure 7 is a three-dimensional cross-sectional view of the torque resistance control mechanism of the present invention at a first viewing angle; Figure 8 It is a three-dimensional cross-sectional view of the torque resistance control mechanism in the present invention at a second viewing angle.

[0018] Among them: 1. Workbench; 2. Support legs; 3. No. 1 shaft mounting hole; 4. Motor fixing housing; 5. Drive motor; 6. Torque resistance control mechanism; 61. Hollow disc; 62. No. 1 shaft fixing groove; 63. Column component mounting cavity; 64. No. 2 shaft mounting hole; 65. Horizontal component movable cavity; 66. Shaft through hole; 67. Inner movable plate; 68. No. 1 spiral spring; 69. Arc-shaped contact plate; 610. Inner rotating column; 611. No. 2 shaft fixing groove; 612. No. 1 rotating shaft; 7. Threaded extrusion mechanism; 71. Lower fixed Extrusion plate; 72. Upper movable extrusion plate; 73. Pipe reserved groove; 74. Limit movable cavity; 75. Longitudinal limit rod; 76. Limit slide plate; 77. Lower threaded perforation; 78. Internal threaded hole; 79. External threaded rod; 710. Rotating cap; 711. No. 2 rotating shaft; 8. Hydraulic telescopic shearing mechanism; 81. Longitudinal hollow shell; 82. Upper fixed plate; 83. Longitudinal component movable cavity; 84. Liquid docking channel; 85. No. 2 shaft body perforation; 86. Piston body; 87. Longitudinal telescopic rod; 88. No. 2 spiral spring; 89. Rectangular shear plate. DETAILED DESCRIPTION

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

[0020] See also Figure 1 , Figure 2 and Figure 3 A high-strength steel pipe extrusion forming equipment for passenger cars includes a workbench 1 with support legs 2 fixedly installed at the bottom, a No. 1 shaft mounting hole 3 arranged at the center of the workbench 1, and a drive motor 5 fixedly installed below the workbench 1 through a motor fixing housing 4. The drive motor 5 is started and the rotation direction of its rotor is controlled, thereby realizing the working state control function of the lower fixed extrusion plate 71 and the upper movable extrusion plate 72.

[0021] To achieve the extrusion work on the steel pipe ends, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , it is necessary to set up a threaded extrusion mechanism 7, which is internally provided with a lower fixed extrusion plate 71 fixedly installed on the upper surface of the workbench 1, an upper movable extrusion plate 72 that cooperates with the lower fixed extrusion plate 71 to extrude and shape the steel pipe, an external threaded rod 79 that cooperates with the threaded structure and can make the upper movable extrusion plate 72 longitudinally displaced relative to the lower fixed extrusion plate 71 when the rotor of the driving motor 5 rotates, and a longitudinal limiting rod 75 that can prevent the lower fixed extrusion plate 71 and the upper movable extrusion plate 72 from lateral displacement. First, the high-strength steel pipe is placed between the lower fixed extrusion plate 71 and the upper movable extrusion plate 72 along the pipeline reserved groove 73, and the end of the steel pipe to be extruded is located between the lower fixed extrusion plate 71 and the upper movable extrusion plate 72 At the solid end surface of the upper movable extrusion plate 72, the rotor of the driving motor 5 is operated to drive the No. 2 rotating shaft 711 to rotate. At the same time, the external threaded rod 79 rotates accordingly. Due to the connection of the threaded structure, and the lower fixed extrusion plate 71 and the upper movable extrusion plate 72 cannot rotate relative to each other under the action of the longitudinal limit rod 75, at this time, the upper movable extrusion plate 72 is longitudinally displaced relative to the lower fixed extrusion plate 71, so that the two are close to each other. When the surfaces of the lower fixed extrusion plate 71 and the upper movable extrusion plate 72 contact the steel pipe, they will continue to be squeezed thereon, so that the end of the steel pipe is squeezed into a flat state, and part of the steel pipe will enter the inside of the pipe reserved groove 73 to prevent it from being squeezed, thereby achieving the squeezing work on the end of the steel pipe.

[0022] For the specific structure of the threaded extrusion mechanism 7, please refer to Figure 4 and Figure 5, including a lower fixed extrusion plate 71, an upper movable extrusion plate 72 and an external threaded rod 79, the bottom of the lower fixed extrusion plate 71 is fixedly installed on the upper surface of the workbench 1, the upper movable extrusion plate 72 is located directly above the lower fixed extrusion plate 71, and the lower fixed extrusion plate 71 and the upper movable extrusion plate 72 are provided with corresponding limiting movable cavities 74, each of the two upper and lower symmetrical limiting movable cavities 74 is provided with a limiting slide plate 76 that can move longitudinally along the limiting movable cavity 74, and the two upper and lower symmetrical limiting slide plates 76 are connected by a longitudinal limiting rod 75 that passes through the lower fixed extrusion plate 71 and the upper movable extrusion plate 72, and the lower fixed extrusion plate 71 and the upper movable extrusion plate 72 are respectively provided with corresponding lower threaded through holes 77 and internal threaded holes 78 at the centers, and the lower fixed extrusion plate 71 and the upper movable extrusion plate 72 are respectively provided with pipeline reserved grooves at two times of the lower threaded through holes 77 and the internal threaded holes 78 73, one end of the pipeline reserved groove 73 is in an open state and the other end is a solid structure, an externally threaded rod 79 is placed in the lower threaded through hole 77 and the internally threaded hole 78, and the externally threaded rod 79 is connected to the upper movable extrusion plate 72 through a threaded structure, and a rotating cap 710 with an integral structure therewith is provided at the top of the externally threaded rod 79, and a No. 2 rotating shaft 711 passing through the No. 1 shaft body mounting hole 3 is fixedly installed at the bottom end of the externally threaded rod 79, and the shaft body of the No. 2 rotating shaft 711 is fixedly installed in the No. 1 shaft body mounting hole 3 through a bearing, the structural radius of the limiting slide plate 76 matches the structural radius of the limiting active cavity 74, and the structural radius of the limiting slide plate 76 is larger than the structural radius of the longitudinal limiting rod 75, and the threaded structure includes an internally threaded structure arranged in the lower threaded through hole 77 and an externally threaded structure arranged at the rod body of the externally threaded rod 79, and the internally threaded structure matches the externally threaded structure.

[0023] To achieve the shear function on the extruded end of the steel tube, please refer to Figure 1 , Figure 2 and Figure 6 , it is necessary to set up a hydraulic telescopic shearing mechanism 8, which is provided with a longitudinal hollow shell 81 fixedly installed at the bottom of the workbench 1 and in a hollow state, a piston body 86 placed inside the longitudinal hollow shell 81 and moving upward after being subjected to liquid pressure, a longitudinal telescopic rod 87 moving longitudinally with the piston body 86, and a rectangular shear plate 89 moving with the longitudinal telescopic rod 87 and capable of shearing the steel pipe. The liquid docking channel 84 is docked with a liquid circuit of a hydraulic device that can control the flow direction of the liquid through a pipeline. When the hydraulic device is started, the liquid will enter the interior of the longitudinal component active cavity 83, generating upward pressure on the piston body 86, so that the piston body 86 drives the rectangular shear plate 89 to move upward until the leaked steel pipe is sheared, thereby realizing the shearing function of the extruded end of the steel pipe.

[0024] For the specific structure of the hydraulic telescopic shearing mechanism 8, please refer to Figure 6 , including a longitudinal hollow shell 81, the upper surface of the longitudinal hollow shell 81 is provided with an upper fixed plate 82 which is an integral structure with it and fixedly installed at the bottom of the workbench 1, the interior of the longitudinal hollow shell 81 is provided with a longitudinal component active cavity 83, the bottom end of the longitudinal hollow shell 81 is provided with a liquid docking channel 84 connecting the external space and the bottom end of the longitudinal component active cavity 83, the top end of the longitudinal hollow shell 81 is provided with a second shaft body through hole 85 connecting the external space and the top end of the longitudinal component active cavity 83, and the longitudinal hollow shell 81 is provided with a shaft body through hole 85 which is connected to the external space and the top end of the longitudinal component active cavity 83, and the longitudinal hollow shell 81 is provided with a shaft body through hole 85 which is able to move axially along the longitudinal component active cavity 83 in the interior of the longitudinal component active cavity 83 The piston body 86 has a longitudinal telescopic rod 87 which passes through the No. 2 shaft body through-hole 85 and is fixedly mounted on the upper end face of the piston body 86. The longitudinal telescopic rod 87 has a No. 2 coil spring 88 sleeved on the outer periphery of the rod body located inside the longitudinal component active cavity 83. The rod body of the longitudinal telescopic rod 87 passes through the plate body of the workbench 1, and a rectangular shear plate 89 is fixedly mounted on the top end, one side of which abuts against the side surface of the lower fixed extrusion plate 71. The initial length of the No. 2 coil spring 88 is greater than the depth of the longitudinal component active cavity 83, and the lower end face of the No. 2 coil spring 88 abuts against the upper surface of the piston body 86, and the lower end face abuts against the top end of the longitudinal component active cavity 83.

[0025] To prevent the drive motor 5 from being damaged due to torque resistance, please refer to Figure 2 , Figure 3 , Figure 7 and Figure 8 , it is necessary to set up a torque resistance control mechanism 6, which is internally provided with a hollow disk body 61 capable of driving the second rotating shaft 711 to rotate, an inner rotating column 610 that rotates with the rotor of the driving motor 5, and an arc-shaped contact plate 69 that relies on friction to enable the hollow disk body 61 and the inner rotating column 610 to be linked. After the lower fixed extrusion plate 71 and the upper movable extrusion plate 72 completely squeeze the steel pipe, a torque resistance will be formed between the two. When the torque resistance is greater than the force formed by the maximum static friction between the inner rotating column 610 and the arc-shaped contact plate 69, the rotor will rotate normally, and relative rotation will occur between the hollow disk body 61 and the arc-shaped contact plate 69, which will not cause the torque resistance to continue to increase, thereby preventing the driving motor 5 from being damaged due to the torque resistance.

[0026] For the specific structure of the torque resistance control mechanism 6, please refer to Figure 7 and Figure 8, including a hollow disk body 61, an inner rotating column 610 and a No. 1 rotating shaft 612, the upper end surface of the hollow disk body 61 is provided with a No. 1 shaft body fixing groove 62 for fixing and installing the No. 2 rotating shaft 711, the center of the hollow disk body 61 is provided with a columnar component mounting cavity 63, the bottom end center of the hollow disk body 61 is provided with a No. 2 shaft body mounting hole 64, the shaft body of the No. 1 rotating shaft 612 is installed inside the No. 2 shaft body mounting hole 64 through a bearing, the center of the columnar component mounting cavity 63 is provided with an inner rotating column 610, the bottom center of the inner rotating column 610 is provided with a No. 2 shaft body fixing groove 611 for installing the No. 1 rotating shaft 612, the bottom end of the No. 1 rotating shaft 612 is fixedly connected to the rotor end of the driving motor 5, the hollow disk body 61 is provided with a plurality of annular array-type horizontal component active cavities 65 on the periphery of the columnar component mounting cavity 63, the horizontal component active cavities 65 and the circumferential side surface of the cylindrical component mounting cavity 63 are connected through the No. 1 shaft body through hole 66, and the hollow disk body 61 is provided with an inner movable plate 67 capable of axially moving along the cylindrical component mounting cavity 63 inside the cylindrical component mounting cavity 63, and a No. 1 coil spring 68 is placed at one end of the inner movable plate 67, and a connecting shaft body passing through the No. 1 shaft body through hole 66 is fixedly installed on the other end of the inner movable plate 67, and an arc-shaped contact plate 69 that abuts against the circumferential surface of the inner rotating column 610 is fixedly installed on one end of the connecting shaft body located inside the cylindrical component mounting cavity 63, one end of the No. 1 coil spring 68 abuts against one end surface of the inner movable plate 67, and the other end abuts against one end surface of the transverse component movable cavity 65, and the No. 1 coil spring 68 is in a compressed state, and the structural radius of the inner concave surface of the arc-shaped contact plate 69 matches the structural radius of the inner rotating column 610.

[0027] When in use, the liquid docking channel 84 is docked with the liquid circuit of a hydraulic device that can control the flow direction of the liquid through a pipeline, the drive motor 5 is started, and the rotation direction of its rotor is controlled, and the high-strength steel pipe is placed between the lower fixed extrusion plate 71 and the upper movable extrusion plate 72 along the pipeline reserved groove 73, and the end of the steel pipe to be squeezed is located at the solid end surface of the lower fixed extrusion plate 71 and the upper movable extrusion plate 72, and then the rotor of the drive motor 5 is driven to work, driving the second rotating shaft 711 to rotate, and at the same time, the external threaded rod 79 rotates accordingly. Due to the connection of the threaded structure, the lower fixed extrusion plate 71 and the upper movable extrusion plate 72 cannot rotate relative to each other under the action of the longitudinal limit rod 75. At this time, the upper movable extrusion plate 72 is longitudinally displaced relative to the lower fixed extrusion plate 71, so that the two are close to each other. When the surfaces of the lower fixed extrusion plate 71 and the upper movable extrusion plate 72 contact the steel pipe, they will continue to exert an extrusion effect on it, so that the end of the steel pipe is squeezed into a flat state, and part of the steel pipe will enter the inside of the pipeline reserved groove 73 to prevent it from being squeezed, thereby realizing the extrusion work on the end of the steel pipe, starting the hydraulic equipment, and the liquid will enter the inside of the longitudinal component active cavity 83, generating an upward pressure on the piston body 86, so that the piston body 86 drives the rectangular shear plate 89 to move upward until the leaked steel pipe is sheared, thereby realizing the extrusion and shaping work of the steel pipe.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-strength steel pipe extrusion molding equipment for passenger cars, comprising a workbench (1) with a support leg (2) fixedly mounted on the bottom, a No. 1 shaft body mounting hole (3) arranged at the center of the workbench (1), and a drive motor (5) fixedly mounted below the workbench (1) through a motor fixing housing (4), characterized in that: Also includes, A threaded extrusion mechanism (7) is provided inside thereof with a lower fixed extrusion plate (71) fixedly mounted on the upper surface of a worktable (1), an upper movable extrusion plate (72) that cooperates with the lower fixed extrusion plate (71) and is capable of extruding and shaping the steel pipe, an external threaded rod (79) that cooperates with the threaded structure and is capable of causing the upper movable extrusion plate (72) to move longitudinally relative to the lower fixed extrusion plate (71) when the rotor of the drive motor (5) rotates, and a longitudinal limit rod (75) that is capable of preventing the lower fixed extrusion plate (71) and the upper movable extrusion plate (72) from being displaced laterally; A hydraulic telescopic shearing mechanism (8) is provided inside which is provided a longitudinal hollow shell (81) fixedly mounted on the bottom of a worktable (1) and having a hollow interior, a piston body (86) placed inside the longitudinal hollow shell (81) and moving upwards when subjected to liquid pressure, a longitudinal telescopic rod (87) moving longitudinally with the piston body (86), and a rectangular shearing plate (89) moving with the longitudinal telescopic rod (87) and capable of shearing the steel pipe.

2. The high-strength steel pipe extrusion molding equipment for passenger cars according to claim 1, characterized in that: The threaded extrusion mechanism (7) comprises a lower fixed extrusion plate (71), an upper movable extrusion plate (72) and an externally threaded rod (79); the bottom of the lower fixed extrusion plate (71) is fixedly mounted on the upper surface of the worktable (1); the upper movable extrusion plate (72) is located directly above the lower fixed extrusion plate (71); and the lower fixed extrusion plate (71) and the upper movable extrusion plate (72) are provided with corresponding limiting movable cavities (74) inside, and a limiting slide plate (76) capable of longitudinal movement along the limiting movable cavity (74) is placed inside each of the two upper and lower symmetrical limiting movable cavities (74); the two upper and lower symmetrical limiting slide plates (76) are connected by a longitudinal limiting rod (75) penetrating the lower fixed extrusion plate (71) and the upper movable extrusion plate (72); and the centers of the lower fixed extrusion plate (71) and the upper movable extrusion plate (72) are provided with respective limiting movable cavities (74). Corresponding lower threaded through holes (77) and internal threaded holes (78) are provided, and the lower fixed extrusion plate (71) and the upper movable extrusion plate (72) are respectively provided with pipeline reserved grooves (73) at two ends of the lower threaded through hole (77) and the internal threaded hole (78), one end of the pipeline reserved groove (73) is in an open state, and the other end is a solid structure, an external threaded rod (79) is placed in the lower threaded through hole (77) and the internal threaded hole (78), and the external threaded rod (79) is connected to the upper movable extrusion plate (72) through a threaded structure, and a rotating cap (710) with an integral structure is provided at the top end of the external threaded rod (79), and a second rotating shaft (711) penetrating the first shaft body mounting hole (3) is fixedly installed at the bottom end of the external threaded rod (79), and the shaft body of the second rotating shaft (711) is fixedly installed in the first shaft body mounting hole (3) through a bearing.

3. The high-strength steel pipe extrusion molding equipment for passenger cars according to claim 2, characterized in that: The structural radius of the limiting slide plate (76) matches the structural radius of the limiting active cavity (74), and the structural radius of the limiting slide plate (76) is greater than the structural radius of the longitudinal limiting rod (75).

4. The high-strength steel pipe extrusion molding equipment for passenger cars according to claim 3, characterized in that: The thread structure comprises an internal thread structure arranged in the lower thread through hole (77) and an external thread structure arranged at the rod body of the external thread rod (79), and the internal thread structure matches the external thread structure.

5. The high-strength steel pipe extrusion molding equipment for passenger cars according to claim 4, characterized in that: The hydraulic telescopic shearing mechanism (8) comprises a longitudinal hollow shell (81), the upper surface of the longitudinal hollow shell (81) is provided with an upper fixed plate (82) which is an integral structure with the longitudinal hollow shell (81) and fixedly mounted on the bottom of the workbench (1), the interior of the longitudinal hollow shell (81) is provided with a longitudinal component movable cavity (83), the bottom end of the longitudinal hollow shell (81) is provided with a liquid docking channel (84) which communicates with the external space and the bottom end of the longitudinal component movable cavity (83), the top end of the longitudinal hollow shell (81) is provided with a second shaft body through hole (85) which communicates with the external space and the top end of the longitudinal component movable cavity (83), and the The longitudinal hollow shell (81) is provided with a piston body (86) capable of axial movement along the longitudinal component active cavity (83) inside the longitudinal component active cavity (83), and a longitudinal telescopic rod (87) penetrating the No. 2 shaft body through-hole (85) is fixedly mounted on the upper end surface of the piston body (86), and a No. 2 coil spring (88) is sleeved on the outer periphery of the rod body of the longitudinal telescopic rod (87) inside the longitudinal component active cavity (83), the rod body of the longitudinal telescopic rod (87) penetrates the plate body of the workbench (1), and a rectangular shear plate (89) is fixedly mounted on the top end, one side of which abuts against the side surface of the lower fixed extrusion plate (71).

6. The high-strength steel pipe extrusion molding equipment for passenger cars according to claim 5, characterized in that: The initial length of the No. 2 coil spring (88) is greater than the depth of the longitudinal component active cavity (83), and the lower end surface of the No. 2 coil spring (88) abuts against the upper surface of the piston body (86), and the lower end surface abuts against the top end of the longitudinal component active cavity (83).

7. A high-strength steel pipe extrusion molding equipment for passenger cars according to any one of claims 2 to 6, characterized in that: It also includes a torque resistance control mechanism (6), which is provided with a hollow disk (61) capable of driving the second rotating shaft (711) to rotate, an inner rotating column (610) that rotates along with the rotor of the driving motor (5), and an arc-shaped contact plate (69) that can make the hollow disk (61) and the inner rotating column (610) move in conjunction with each other by means of friction.

8. The high-strength steel pipe extrusion molding equipment for passenger cars according to claim 7, characterized in that: The torque resistance control mechanism (6) comprises a hollow disk (61), an inner rotating column (610) and a first rotating shaft (612); the upper end surface of the hollow disk (61) is provided with a first shaft body fixing groove (62) for fixing and mounting a second rotating shaft (711); the center of the hollow disk (61) is provided with a columnar component mounting cavity (63); the center of the bottom end of the hollow disk (61) is provided with a second shaft body mounting hole (64); the shaft body of the first rotating shaft (612) is mounted inside the second shaft body mounting hole (64) via a bearing; the center of the columnar component mounting cavity (63) is provided with an inner rotating column (610); the center of the bottom end of the inner rotating column (610) is provided with a second shaft body fixing groove (611) for mounting the first rotating shaft (612); the bottom end of the first rotating shaft (612) is connected to the rotor end of the drive motor (5). The hollow disk (61) is fixedly connected to the cylindrical component mounting cavity (63), and a plurality of annular array-type transverse component movable cavities (65) are arranged on the periphery of the cylindrical component mounting cavity (63). The circumferential side surfaces of the transverse component movable cavities (65) and the cylindrical component mounting cavity (63) are connected via a No. 1 shaft body through hole (66). The hollow disk (61) is provided with an inner movable plate (67) capable of axial movement along the cylindrical component mounting cavity (63) inside the cylindrical component mounting cavity (63), a No. 1 coil spring (68) is arranged at one end of the inner movable plate (67), and a connecting shaft passing through the No. 1 shaft body through hole (66) is fixedly installed at the other end of the inner movable plate (67), and an arc-shaped contact plate (69) that contacts the circumferential surface of the inner rotating column (610) is fixedly installed at one end of the connecting shaft located inside the cylindrical component mounting cavity (63).

9. The high-strength steel pipe extrusion molding equipment for passenger cars according to claim 8, characterized in that: One end of the No. 1 coil spring (68) abuts against one end surface of the inner movable plate (67), and the other end abuts against one end surface of the transverse component movable cavity (65), and the No. 1 coil spring (68) is in a compressed state.

10. The high-strength steel pipe extrusion molding equipment for passenger cars according to claim 9, characterized in that: The structural radius of the inner concave surface of the arc-shaped abutment plate (69) matches the structural radius of the inner rotating column (610).

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