Core rod table for oil-immersed pipe cold-drawing machine

Abstract

The invention relates to the technical field of pipe cold-drawing machines, and provides a core rod table for an oil-immersed pipe cold-drawing machine. The inner mold core rod assembly is arranged on the bearing assembly and used for bearing or pushing the oil-immersed pipe; the first driving assembly is connected with the bearing assembly and used for driving the bearing assembly to change the working position; wherein under the condition that the bearing assembly is located at the feeding working position, the inner mold core rod assembly is used for bearing the oil-immersed pipe, and under the condition that the bearing assembly is located at the drawing working position, the inner mold core rod assembly is used for conveying the oil-immersed pipe. In the moving process that the bearing assembly changes the working position, the inner mold core rod assembly bears the oil-immersed pipe to be fixed relative to the bearing assembly, the situation that after the oil-immersed pipe penetrates through a core rod, the oil-immersed pipe and the core rod slide off in the process that the oil-immersed pipe is conveyed to the drawing working position from the core penetrating station, namely the feeding working position, and the production rhythm is affected is avoided, and the drawing efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of pipe cold drawing machines, in particular to a mandrel table for an oil-immersed pipe cold drawing machine. Background Art

[0002] In the cold drawing process of seamless pipes, in order to achieve rapid drawing, protect the surface of the pipe and improve the surface quality of the pipe, it is usually necessary to lubricate the pipe with oil before drawing. During cold drawing, it is usually necessary to pre-insert the pipe before drawing into the mandrel through the mandrel guide sleeve, and the pipe after core insertion runs with the mandrel to the drawing station. However, the pipe after oil lubrication is very easy to detach from the mandrel when running with the mandrel, which affects the subsequent drawing. Summary of the invention

[0003] 1. Technical issues to be resolved In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a mandrel table for an oil-immersed pipe cold drawing machine, which solves the technical problem that during cold drawing, when the pipe lubricated by oil immersion is moved from the loading workstation to the drawing workstation, the pipe and the mandrel are easily separated.

[0004] (II) Technical solution In order to achieve the above object, the main technical solutions adopted by the present invention include: An embodiment of the present invention provides a mandrel table for an oil-immersed pipe cold drawing machine.

[0005] A mandrel table for an oil-immersed pipe cold drawing machine provided in an embodiment of the present invention comprises: Load bearing components; The inner mold core rod assembly is arranged on the bearing assembly and is used to receive or push the oil-immersed pipe; A first driving assembly is connected to the bearing assembly and is used to drive the bearing assembly to change a working position; Among them, when the bearing assembly is in the loading work position, the inner mold core rod assembly is used to receive the oil-immersed pipe, and when the bearing assembly is in the drawing work position, the inner mold core rod assembly is used to transport the oil-immersed pipe.

[0006] Optionally, the bearing assembly includes: An upper crossbeam, on which the inner mold core rod assembly is arranged; A lower crossbeam, wherein the upper crossbeam is arranged on the lower crossbeam; The second driving assembly is arranged between the upper cross beam and the lower cross beam, and is used for changing the lateral position between the upper cross beam and the lower cross beam.

[0007] Optionally, the second driving assembly includes: A translation cylinder is arranged on the lower cross beam; The translation oil cylinder connection seat is arranged on the upper cross beam, and the output end of the translation oil cylinder is connected to the translation oil cylinder connection seat.

[0008] Optionally, the bearing assembly further includes: The guide assembly is arranged between the upper beam and the lower beam, and is used to reduce the straightness error of the displacement between the upper beam and the lower beam.

[0009] Optionally, the guide assembly comprises: A slider is arranged on the lower cross beam; The guide rail is arranged on the upper cross beam, and the slider is slidably installed on the guide rail.

[0010] Optionally, the inner mold core rod assembly includes: The inner mold rod body is used to carry the oil immersion tube; The core rod pushing oil cylinder has an output end coaxially connected to the inner mold rod body and is used to control the movement of the inner mold rod body on the bearing assembly.

[0011] Optionally, the inner mold core rod assembly further comprises: The supporting roller is arranged on the bearing assembly and is used for supporting the oil immersion pipe on the inner mold rod body.

[0012] Optionally, the first driving assembly includes: Swing arm base, used for fixed connection with external equipment; A bending swing arm, wherein the bending portion of the bending swing arm is hinged on the swing arm seat, and one end of the bending swing arm is hinged on the bearing assembly; A lifting cylinder, the output end of which is hinged to the other end of the bending swing arm.

[0013] Optionally, the bending swing arm comprises: A swinging long arm, one end of which is hinged to the bearing assembly; A swinging short arm, one end of which is hinged to the lifting cylinder; Among them, the other end of the long swing arm is fixedly connected to the other end of the short swing arm, an angle is formed between the long swing arm and the short swing arm, and the long swing arm is not parallel to the short swing arm.

[0014] Optionally, the bending swing arms include at least two.

[0015] (III) Beneficial effects The beneficial effects of the present invention are as follows: the mandrel table for the cold drawing machine for oil-immersed pipes of the present invention comprises a bearing assembly, an inner mold mandrel assembly and a first driving assembly; the oil-immersed pipe before drawing is sent to the loading work station via a loading mechanism, the oil-immersed pipe is carried by the inner mold mandrel assembly, and then the working position of the bearing assembly is changed by the first driving assembly, and moved to the drawing work station, where the oil-immersed pipe is drawn; during the movement of the bearing assembly to change the working position, the inner mold mandrel assembly carries the oil-immersed pipe and is fixed relative to the bearing assembly, thereby avoiding the oil-immersed pipe from slipping due to the asynchronous operation between the pipe and the mandrel during the transportation from the core-piercing work station, i.e., the loading work station, to the drawing work station after passing through the mandrel, thereby affecting the production rhythm and improving the drawing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the bearing assembly of the mandrel table for the oil-immersed pipe cold drawing machine of the present invention in the loading working position; Figure 2 It is a schematic diagram of the main structure of the bearing assembly of the mandrel table for the oil-immersed pipe cold drawing machine of the present invention in the drawing working position.

[0017] [Description of Reference Numerals] 100, bearing assembly; 110, upper crossbeam; 120, lower crossbeam; 130, second drive assembly; 131, translation cylinder; 132, translation cylinder connecting seat; 140, guide assembly; 141, slider; 142, guide rail; 200, inner mold core rod assembly; 210, inner mold rod body; 220, core rod pushing cylinder; 230, supporting roller; 300, first drive assembly; 310, swing arm seat; 320, bending swing arm; 321, long swing arm; 322, short swing arm; 330, lifting cylinder; 400, oil-immersed pipe; 500, loading work station; 600, drawing work station; 700, pull rod. DETAILED DESCRIPTION

[0018] In the mandrel table for the oil-immersed pipe cold drawing machine proposed in the embodiment of the present invention, the oil-immersed pipe 400 before drawing is sent to the loading workstation 500 through the loading mechanism, and the oil-immersed pipe 400 is carried by the inner mold mandrel assembly 200, and then the working position of the bearing assembly 100 is changed by the first driving assembly 300, and moved to the drawing workstation 600, and the oil-immersed pipe 400 is drawn at the drawing workstation 600. During the movement of the bearing assembly 100 to change the working position, the inner mold mandrel assembly 200 carries the oil-immersed pipe 400 and is fixed relative to the bearing assembly 100, so as to avoid the oil-immersed pipe 400 slipping due to the asynchronous operation between the pipe and the mandrel during the transportation from the core-threading workstation, i.e., the loading workstation 500 to the drawing workstation 600 after passing through the mandrel, thereby affecting the production rhythm and improving the drawing efficiency.

[0019] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0020] like Figure 1 and Figure 2 As shown, according to an embodiment of the present application, a mandrel table for an oil-immersed pipe cold drawing machine is proposed, comprising: a bearing assembly 100; an inner mold mandrel assembly 200, which is arranged on the above-mentioned bearing assembly 100 and is used to receive or push the oil-immersed pipe 400; a first driving assembly 300, which is connected to the above-mentioned bearing assembly 100 and is used to drive the bearing assembly 100 to change the working position; wherein, when the above-mentioned bearing assembly 100 is in the loading working position 500, the above-mentioned inner mold mandrel assembly 200 is used to receive the oil-immersed pipe 400, and when the above-mentioned bearing assembly 100 is in the drawing working position 600, the above-mentioned inner mold mandrel assembly 200 is used to convey the oil-immersed pipe 400.

[0021] The core rod table for the oil-immersed pipe cold drawing machine provided in the embodiment of the present application includes a bearing assembly 100, an inner mold core rod assembly 200 and a first driving assembly 300, wherein the inner mold core rod assembly 200 is arranged and installed on the bearing assembly 100, and the inner mold core rod assembly 200 is used to receive or push the oil-immersed pipe 400, and the bearing assembly 100 changes its working position through the first driving assembly 300. When the bearing assembly 100 changes its working position under the drive of the first driving assembly 300, it also drives the inner mold core rod assembly 200 to move and change its working position together. During the movement, the bearing assembly 100 and the inner mold core rod assembly 200 are fixed in relative positions to each other. Only when the bearing assembly 100 is in the loading working position 500 or the drawing working position 600, the inner mold core rod assembly 200 will make an action of receiving the oil-immersed pipe 400 or conveying the oil-immersed pipe 400 relative to the bearing assembly 100.

[0022] Exemplarily, during operation, the oil-immersed tube 400 before drawing is sent to the loading workstation 500 through the loading mechanism, and the first driving assembly 300 controls the bearing assembly 100 to carry the inner mold core rod assembly 200 to move to the loading workstation 500, and the oil-immersed tube 400 moves toward the inner mold core rod assembly 200, and the oil-immersed tube 400 is inserted into the inner mold core rod assembly 200, and the inner mold core rod assembly 200 carries the oil-immersed tube 400. After the inner mold core rod assembly 200 stably carries the oil-immersed tube 400, the first driving assembly 300 controls the bearing assembly 100 to carry the inner mold core rod assembly 200 to move to the drawing workstation 600, and finally the oil-immersed tube 400 inserted into the inner mold core rod assembly 200 is accurately sent to the drawing workstation 600.

[0023] It can be seen from the above content that the oil-immersed tube 400 before drawing is sent to the loading workstation 500 through the loading mechanism, and the oil-immersed tube 400 is carried by the inner mold core rod assembly 200, and then the first driving assembly 300 drives the change of the working position of the bearing assembly 100, and moves to the drawing workstation 600, and the oil-immersed tube 400 is drawn at the drawing workstation 600. During the movement of the bearing assembly 100 to change the working position, the inner mold core rod assembly 200 carries the oil-immersed tube 400 and is fixed relative to the bearing assembly 100, so as to avoid the oil-immersed tube 400 slipping due to the asynchronous operation between the tube and the core rod during the transportation from the core rod passing workstation, i.e. the loading workstation 500 to the drawing workstation 600 after passing the core rod, thereby affecting the production rhythm and improving the drawing efficiency.

[0024] like Figure 1 and Figure 2 As shown, in some examples, the supporting assembly 100 includes: an upper beam 110, on which the inner mold core rod assembly 200 is disposed; a lower beam 120, on which the upper beam 110 is disposed; and a second driving assembly 130, which is disposed between the upper beam 110 and the lower beam 120 and is used to change the lateral position between the upper beam 110 and the lower beam 120.

[0025] In this technical solution, the bearing assembly 100 includes an upper beam 110, a lower beam 120 and a second drive assembly 130, wherein the upper beam 110 is installed on the lower beam 120, and at the same time, the inner mold core rod assembly 200 is arranged on the upper beam 110, and the second drive assembly 130 is arranged between the upper beam 110 and the lower beam 120. The function of the second drive assembly 130 is to control the change of the lateral position between the upper beam 110 and the lower beam 120. When the bearing assembly 100 is in the loading work station 500, the lower beam 120 is relatively fixed to the loading mechanism of the external equipment, and the second drive assembly 130 controls the upper beam 110 to move toward the loading mechanism of the external equipment, so as to facilitate the inner mold core rod assembly 200 to be closer to the loading work station 500, and facilitate the inner mold core rod assembly 200 to more conveniently carry the oil-immersed pipe 400, thereby effectively improving work efficiency.

[0026] like Figure 1 and Figure 2 As shown, in some examples, the second driving assembly 130 includes: a translation cylinder 131, which is disposed on the lower beam 120; a translation cylinder connecting seat 132, which is disposed on the upper beam 110, and the output end of the translation cylinder 131 is connected to the translation cylinder connecting seat 132.

[0027] In this technical solution, the second drive assembly 130 includes a translation cylinder 131 and a translation cylinder connecting seat 132, the translation cylinder connecting seat 132 is arranged on the upper crossbeam 110 or the lower crossbeam 120, and the translation cylinder 131 is also arranged on the upper crossbeam 110 or the lower crossbeam 120, wherein the translation cylinder connecting seat 132 and the translation cylinder 131 are not arranged on the same crossbeam, and at the same time, exemplarily, the output end of the translation cylinder 131 is connected to the translation cylinder connecting seat 132; when working, the output end of the translation cylinder 131 retracts to push the upper crossbeam 110 to The front position is close to the loading work station 500. The inner mold core rod assembly 200 is close to the loading work station 500 and the loading mechanism pushes the oil-immersed tube 400 into the inner mold core rod assembly 200. The oil-immersed tube 400 stops pushing after the flat mouth contacts the end of the inner mold core rod assembly 200 close to the loading device. The output end of the translation cylinder 131 extends out to push the upper beam 110 to the rear position. During operation, there is no relative movement between the oil-immersed tube 400, the inner mold core rod assembly 200 and the upper beam 110, ensuring that the oil-immersed tube 400 and the inner mold core rod assembly 200 run synchronously.

[0028] like Figure 1 and Figure 2 As shown, in some examples, the bearing assembly 100 further includes: a guide assembly 140, which is disposed between the upper beam 110 and the lower beam 120, and is used to reduce a straightness error of displacement between the upper beam 110 and the lower beam 120.

[0029] In this technical solution, the bearing assembly 100 further includes a guide assembly 140, wherein the guide assembly 140 is arranged between the upper crossbeam 110 and the lower crossbeam 120, and its main purpose is to reduce the straightness error of the displacement between the upper crossbeam 110 and the lower crossbeam 120. In the actual working process, the bearing assembly 100 needs to change the lateral position between the upper crossbeam 110 and the lower crossbeam 120 through the second driving assembly 130, so as to achieve the inner mold core rod assembly 200 to better receive and transport the oil-immersed pipe 400 at the loading work station 500 and the drawing work station 600. However, in this process, if the displacement between the upper crossbeam 110 and the lower crossbeam 120 does not have good straightness, it may cause the position of the inner mold core rod assembly 200 to be inaccurate, affecting the receiving and conveying effect of the oil-immersed pipe 400, and may even cause the oil-immersed pipe 400 to slip during transportation and other problems, affecting the production rhythm and drawing efficiency.

[0030] Exemplarily, in a specific working process, when the bearing assembly 100 is in the loading work station 500, the lower crossbeam 120 is relatively fixed to the loading mechanism of the external device, and the second driving assembly 130 controls the upper crossbeam 110 to move in the direction close to the loading mechanism of the external device. At this time, the guide assembly 140 can ensure that the upper crossbeam 110 moves smoothly to the accurate position, so that the inner mold core rod assembly 200 can more conveniently carry the oil-immersed tubing 400. When the oil-immersed tubing 400 needs to be transported to the drawing work station 600, the second driving assembly 130 drives the upper crossbeam 110 to move again, and the guide assembly 140 continues to play a role, ensuring that the upper crossbeam 110 accurately moves to the drawing work station 600 with the inner mold core rod assembly 200 and the oil-immersed tubing 400, avoiding position deviation during the movement process.

[0031] From the above content, it can be seen that the guide assembly 140 ensures the accurate switching of the inner mold mandrel assembly 200 between different working positions by reducing the straightness error of the displacement between the upper beam 110 and the lower beam 120, thereby improving the working stability and reliability of the mandrel table for the oil-immersed pipe cold drawing machine, thereby effectively improving production efficiency.

[0032] like Figure 1 and Figure 2 As shown, in some examples, the guide assembly 140 includes: a slider 141 disposed on the lower beam 120 ; a guide rail 142 disposed on the upper beam 110 , and the slider 141 is slidably mounted on the guide rail 142 .

[0033] In this technical solution, the guide assembly 140 includes a slider 141 and a guide rail 142, which play a key role in the stable operation of the mandrel table for the oil-immersed pipe cold drawing machine. Specifically, for example, the slider 141 is arranged on the upper beam 110 or the lower beam 120, and the guide rail 142 is arranged on the corresponding other beam. When the bearing assembly 100 needs to change the lateral position between the upper beam 110 and the lower beam 120 through the second driving assembly 130, the slider 141 slides on the guide rail 142.

[0034] Exemplarily, the slider 141 can be made of, but not limited to, high-strength, wear-resistant materials to ensure that it can maintain good sliding performance during long-term use. At the same time, the slider 141 is closely matched with the guide rail 142 to reduce the gap during the sliding process, thereby improving the displacement accuracy; Exemplarily, the slider 141 can also be provided with a lubrication device, such as a lubricating oil groove or a lubricating block, to reduce sliding friction, reduce wear, and extend the service life. Exemplarily, the guide rail 142 can also be made of, but not limited to, strong and durable materials, and its surface is precisely processed to ensure good straightness and flatness. The length and shape of the guide rail 142 are installed according to the moving distance and direction between the upper beam 110 and the lower beam 120 to meet the needs of the load-bearing assembly 100 switching between different working positions.

[0035] In actual work, when the second driving assembly 130 drives the upper beam 110 to move relative to the lower beam 120, the slider 141 slides smoothly along the guide rail 142. This sliding mode can effectively reduce the straightness error of the displacement between the upper beam 110 and the lower beam 120, and ensure the accurate position of the inner mold core rod assembly 200; illustratively, when the bearing assembly 100 is in the loading work position 500, the lower beam 120 is relatively fixed to the loading mechanism of the external device, and the second driving assembly 130 controls the upper beam 110 to move toward the loading mechanism of the external device. At this time, the sliding of the slider 141 on the guide rail 142 can ensure that the upper beam 110 moves in a straight line, so that the inner mold core rod assembly 200 can accurately approach the loading workstation 500, which is convenient for receiving the oil-immersed pipe 400; and when the oil-immersed pipe 400 needs to be transported to the drawing workstation 600, the cooperation of the slider 141 and the guide rail 142 can ensure that the upper beam 110 moves smoothly and accurately with the inner mold core rod assembly 200 and the oil-immersed pipe 400 to the drawing workstation 600, avoiding position deviation during the movement process, which affects the production efficiency and product quality.

[0036] like Figure 1 and Figure 2 As shown, in some examples, the inner mold core rod assembly 200 includes: an inner mold rod body 210, used to carry the oil immersion tube; a core rod pushing cylinder 220, the output end of the core rod pushing cylinder 220 is coaxially connected to the inner mold rod body 210, and is used to control the movement of the inner mold rod body 210 on the supporting assembly 100.

[0037] In this technical solution, the inner mold core rod assembly 200 includes an inner mold rod body 210 and a core rod pushing cylinder 220, wherein the inner mold rod body 210 is mainly used to carry the oil-immersed pipe 400. Exemplarily, the shape and size of the inner mold rod body 210 are set according to the shape and length of the oil-immersed pipe 400 to adapt to oil-immersed pipes 400 of different specifications, and its surface is usually specially treated, such as chrome plating or coating, to improve wear resistance and reduce friction with the oil-immersed pipe 400.

[0038] The output end of the mandrel push cylinder 220 is coaxially connected to the inner mold rod body 210, and is used to control the movement of the inner mold rod body 210 on the bearing assembly 100. The mandrel push cylinder 220 is usually composed of a cylinder body, a piston, a piston rod and other components; the cylinder body is fixed on the bearing assembly 100, one end of the piston rod is connected to the piston, and the other end is connected to the inner mold rod body 210. When the mandrel push cylinder 220 is working, the pressure provided by the hydraulic system pushes the piston to move in the cylinder body, thereby driving the piston rod and the inner mold rod body 210 to move together. In actual work, when the bearing assembly 100 is in the loading work position 500, the mandrel push cylinder 220 can control the inner mold rod body 210 to move to a suitable position so as to better receive the oil-soaked pipe 400. For example, after the feeding mechanism delivers the oil-immersed tubing 400 to the feeding station 500, the mandrel push cylinder 220 can push the inner mold rod body 210 to move in the direction of the oil-immersed tubing 400, so that the oil-immersed tubing 400 can be smoothly inserted into the inner mold rod body 210. When the oil-immersed tubing 400 needs to be delivered to the drawing station 600, the mandrel push cylinder 220 can control the inner mold rod body 210 to move together with the bearing assembly 100 to ensure that the oil-immersed tubing 400 can accurately reach the drawing station 600. At the same time, the mandrel push cylinder 220 can also adjust the moving speed and position accuracy of the inner mold rod body 210 according to different work requirements. By accurately controlling the pressure and flow of the hydraulic system, the inner mold rod body 210 can be moved smoothly and quickly, thereby improving production efficiency. At the same time, the mandrel push cylinder 220 can also cooperate with other control systems to realize automated production, reduce manual operations, and improve production safety and reliability.

[0039] Exemplarily, the inner mold rod body 210 can be made of, but not limited to, high-strength, wear-resistant materials to ensure that it can withstand the weight of the oil-immersed tubing 400 and the forces during the drawing process during long-term use.

[0040] In summary, the inner mold rod body 210 and the mandrel pushing cylinder 220 in the inner mold mandrel assembly 200 cooperate with each other, providing important guarantee for the normal operation of the mandrel table for the oil-immersed pipe cold drawing machine, and ensuring the smooth progress of the receiving, conveying and drawing process of the oil-immersed pipe 400.

[0041] like Figure 1 and Figure 2 As shown, in some examples, the inner mold core rod assembly 200 further includes: a support roller 230 , which is disposed on the bearing assembly 100 and is used to support the oil immersion tube on the inner mold rod body 210 .

[0042] In this technical solution, the inner mold core rod assembly 200 also includes a support roller 230 disposed on the bearing assembly 100. The support roller 230 is disposed on the bearing assembly 100, and its main function is to support the oil-immersed pipe 400 on the inner mold rod body 210. During the transportation and receiving process of the oil-immersed pipe 400, due to the weight of the pipe itself and the external force that may be applied, a stable support structure is required to ensure its accurate position and smooth operation. Exemplarily, the support roller 230 is usually composed of a plurality of rollers, which can be made of, but not limited to, high-strength, wear-resistant materials to ensure that the rollers can withstand the pressure and friction of the oil-immersed pipe 400 during long-term use, and the rollers can fit well with the outer surface of the oil-immersed pipe 400 to provide a stable support force.

[0043] During operation, after the oil-immersed pipe 400 is sleeved on the inner mold rod 210, the support roller 230 and the inner mold rod 210 work together to support the oil-immersed pipe 400. The rollers of the support roller 230 can rotate freely, reducing the friction between the oil-immersed pipe 400 and the support structure, so that the oil-immersed pipe 400 can move more smoothly on the bearing assembly 100. Exemplarily, when the bearing assembly 100 moves from one working position to another working position under the drive of the first drive assembly 300, the support roller 230 can ensure that the oil-immersed pipe 400 remains stable during the movement to avoid shaking or deviation. In addition, the support roller 230 can also be adjusted according to different specifications of the oil-immersed pipe 400. By adjusting the spacing and height of the rollers, it can adapt to pipes of different diameters and lengths, thereby improving the versatility and flexibility of the equipment. The support roller 230 provides stable support for the oil-immersed pipe 400, ensuring the normal operation and efficient production of the equipment.

[0044] like Figure 1 and Figure 2 As shown, in some examples, the first drive component 300 includes: a swing arm seat 310, which is used to be fixedly connected to an external device; a bending swing arm 320, the bending part of the bending swing arm 320 is hinged to the swing arm seat 310, and one end of the bending swing arm 320 is hinged to the supporting component 100; and a lifting cylinder 330, the output end of the lifting cylinder 330 is hinged to the other end of the bending swing arm 320.

[0045] In this technical solution, the swing arm seat 310 is mainly used to be fixedly connected to a horizontal plane or an external device to ensure that the entire first drive assembly 300 has a stable installation foundation. The bending part of the bending swing arm 320 is hinged on the swing arm seat 310, so that the bending swing arm 320 can swing around the hinge point at a certain angle. One end of the bending swing arm 320 is hinged to the bearing assembly 100. Through this connection method, the swing of the bending swing arm 320 can drive the bearing assembly 100 to move accordingly.

[0046] The lifting cylinder 330 provides power in the first driving assembly 300. The output end of the lifting cylinder 330 is hinged to the other end of the bending swing arm 320. When the lifting cylinder 330 is working, the pressure provided by the hydraulic system pushes its piston rod to extend or retract, thereby driving the bending swing arm 320 to swing around the hinge point. The lifting cylinder 330 is usually composed of a cylinder body, a piston, a piston rod, a seal, etc. The cylinder body is fixed in an appropriate position, one end of the piston rod is connected to the piston, and the other end is hinged to the bending swing arm 320.

[0047] In actual work, the working process of the first drive component 300 is as follows: when it is necessary to move the load-bearing component 100 from one working position to another working position, the lifting cylinder 330 starts to work, and the piston rod of the lifting cylinder 330 extends or retracts, pushing the bending swing arm 320 to swing around the hinge point, and the swing of the bending swing arm 320 drives the load-bearing component 100 to perform corresponding movements, thereby realizing the position adjustment of the load-bearing component 100. For example, when it is necessary to move the oil-immersed pipe 400 from the loading workstation 500 to the drawing workstation 600, the lifting cylinder 330 pushes the bending swing arm 320 to swing upward, thereby driving the load-bearing component 100 to rise to a suitable height, and then moves the load-bearing component 100 to the drawing workstation 600 through other driving devices.

[0048] In summary, the swing arm seat 310, the bending swing arm 320 and the lifting cylinder 330 in the first driving assembly 300 cooperate with each other to provide reliable driving power for the operation of the mandrel table for the oil-immersed pipe cold drawing machine, ensuring the normal operation and efficient production of the equipment.

[0049] Exemplarily, the bending swing arm 320 can be made of, but not limited to, high-strength steel, and has sufficient strength and rigidity to bear loads and transmit power.

[0050] like Figure 1 and Figure 2As shown, in some examples, the above-mentioned bending swing arm 320 includes: a swing long arm 321, one end of the above-mentioned swing long arm 321 is hinged to the above-mentioned bearing assembly 100; a swing short arm 322, one end of the above-mentioned swing short arm 322 is hinged to the above-mentioned lifting cylinder 330; wherein, the other end of the above-mentioned swing long arm 321 is fixedly connected to the other end of the above-mentioned swing short arm 322, an angle is formed between the above-mentioned swing long arm 321 and the above-mentioned swing short arm 322, and the above-mentioned swing long arm 321 is not parallel to the above-mentioned swing short arm 322.

[0051] In this technical solution, one end of the long swing arm 321 is hinged to the bearing assembly 100, one end of the short swing arm 322 is hinged to the lifting cylinder 330, and the other end of the long swing arm 321 is fixedly connected to the other end of the short swing arm 322 to form an integral bending structure. This connection method enables the long swing arm 321 and the short swing arm 322 to work together to transmit power and bear loads. An angle is formed between the long swing arm 321 and the short swing arm 322, and the long swing arm 321 and the short swing arm 322 are not parallel.

[0052] In actual work, the working principle of the bending swing arm 320 is as follows: when the lifting cylinder 330 is working, the piston rod at its output end extends or retracts, pushing the swing short arm 322 to move. Since the swing short arm 322 is fixedly connected to the swing long arm 321, the movement of the swing short arm 322 will drive the swing long arm 321 to move together. The swing long arm 321 is hinged to the support assembly 100, so the movement of the swing long arm 321 will drive the support assembly 100 to make corresponding position adjustments.

[0053] By properly setting the length and angle of the long swing arm 321 and the short swing arm 322, a larger lever arm and stroke can be achieved, so that power can be transmitted more effectively and the position of the bearing assembly 100 can be adjusted. Secondly, the bending structure can make the entire first drive assembly 300 more compact in spatial layout, save installation space, and improve the overall performance of the device.

[0054] like Figure 1 and Figure 2 As shown, in some examples, the bending swing arm 320 includes at least two.

[0055] In this technical solution, firstly, at least two bending swing arms 320 are provided to enhance the stability and reliability of the entire driving system. During the movement of the bearing assembly 100, multiple bending swing arms 320 can share the load together, reduce the pressure on a single component, and thus reduce the risk of component damage. For example, when a heavier oil-immersed pipe 400 is placed on the bearing assembly 100, multiple bending swing arms 320 can evenly distribute the load to ensure that the bearing assembly 100 moves smoothly. Secondly, multiple bending swing arms 320 can provide a stronger driving force. Each bending swing arm 320 is hinged to the lifting cylinder 330. When the lifting cylinder 330 is working, multiple bending swing arms 320 act simultaneously, which can generate a greater combined force, so that the bearing assembly 100 can quickly and accurately reach the desired position. The bending swing arms 320 include at least two, which can improve the stability, driving force, accuracy and repeatability of the mandrel table for the oil-immersed pipe cold drawing machine, thereby meeting the needs of the equipment in actual production.

[0056] Exemplarily, one end of the short swing arm 322 away from the long swing arm 321 is connected by the pull rod 700 at the same time, so that multiple bent swing arms 320 can move simultaneously, thereby improving movement stability.

[0057] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0058] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] In the present invention, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0060] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0061] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may alter, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A mandrel table for an oil-immersed pipe cold drawing machine, characterized in that: include: Load bearing components; An inner mold core rod assembly is arranged on the bearing assembly and is used for receiving or pushing; A first driving assembly, connected to the bearing assembly, and used to drive the bearing assembly to change a working position; Wherein, when the bearing assembly is in the loading work position, the inner mold core rod assembly is used to receive the oil-immersed pipe, and when the bearing assembly is in the drawing work position, the inner mold core rod assembly is used to transport the oil-immersed pipe.

2. The mandrel table for oil-immersed pipe cold drawing machine according to claim 1, characterized in that: The bearing assembly comprises: An upper crossbeam, on which the inner mold core rod assembly is disposed; A lower crossbeam, the upper crossbeam being arranged on the lower crossbeam; The second driving assembly is disposed between the upper cross beam and the lower cross beam and is used for changing the lateral position between the upper cross beam and the lower cross beam.

3. The mandrel table for oil-immersed pipe cold drawing machine according to claim 2, characterized in that: The second driving assembly comprises: A translation cylinder is arranged on the lower cross beam; The translation oil cylinder connection seat is arranged on the upper cross beam, and the output end of the translation oil cylinder is connected to the translation oil cylinder connection seat.

4. The mandrel table for oil-immersed pipe cold drawing machine according to claim 2, characterized in that: The bearing assembly further comprises: A guide assembly is disposed between the upper crossbeam and the lower crossbeam, and is used to reduce a straightness error of displacement between the upper crossbeam and the lower crossbeam.

5. The mandrel table for oil-immersed pipe cold drawing machine according to claim 4, characterized in that: The guide assembly comprises: A slider, arranged on the lower cross beam; A guide rail is arranged on the upper cross beam, and the slider is slidably installed on the guide rail.

6. The mandrel table for oil-immersed pipe cold drawing machine according to claim 1, characterized in that: The inner mold core rod assembly comprises: The inner mold rod body is used to carry the oil immersion tube; A core rod pushing cylinder, the output end of which is coaxially connected to the inner mold rod body, is used to control the movement of the inner mold rod body on the bearing assembly.

7. The mandrel table for oil-immersed pipe cold drawing machine according to claim 6, characterized in that: The inner mold core rod assembly also includes: The supporting roller is arranged on the bearing assembly and is used for supporting the oil immersion pipe on the inner mold rod body.

8. The mandrel table for oil-immersed pipe cold drawing machine according to claim 1, characterized in that: The first drive assembly comprises: Swing arm base, used for fixed connection with external equipment; A bending swing arm, wherein the bending portion of the bending swing arm is hinged to the swing arm seat, and one end of the bending swing arm is hinged to the bearing assembly; A lifting cylinder, wherein the output end of the lifting cylinder is hinged to the other end of the bending swing arm.

9. The mandrel table for oil-immersed pipe cold drawing machine according to claim 8, characterized in that: The bending swing arm comprises: A swinging long arm, one end of which is hinged to the bearing assembly; A swing short arm, one end of which is hinged to the lifting cylinder; Among them, the other end of the long swing arm is fixedly connected to the other end of the short swing arm, an angle is formed between the long swing arm and the short swing arm, and the long swing arm is not parallel to the short swing arm.

10. The mandrel table for oil-immersed pipe cold drawing machine according to claim 8, characterized in that: The bending swing arms include at least two.

Images