A center rail draw bender

Abstract

The present application relates to a kind of middle orbit draw bending machine, including console, draw bending machine base and draw bending machine platform, the right part of the front side of draw bending machine base is equipped with console, draw bending machine platform is installed on the draw bending machine base, the right part of the upper end surface of draw bending machine platform is equipped with left and right movement sliding platform, the upper end surface of the sliding platform is equipped with front and rear movement injection arm module, the right part of the upper end surface of the sliding platform is rotatably installed with bending arm, the bending arm is equipped with press fitting die, the rear side of the draw bending machine base is equipped with rear base.The present application has the characteristics of small volume, firm clamping, low production cost, high bending efficiency, accurate positioning and the like.

Description

Technical Field

[0001] This invention relates to the field of tension bending machine technology, and in particular to a medium-track tension bending machine. Background Technology

[0002] Conventional horizontal bending machines typically have two bending arms that perform bending, enabling the equipment to bend pipes in both directions. However, this type of equipment has a problem: when producing bent parts of medium length, the operating cost of the dual-actuator bending machine increases significantly. This is mainly because horizontal bending machines are large in size, and the use of dual actuators during bending operations greatly increases production and energy costs. To solve these problems, a bending machine specifically designed for medium-length rails needs to be designed. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a medium track bending machine, which has the characteristics of small size, firm clamping, low production cost, high bending efficiency and precise positioning.

[0004] The technical solution adopted by the present invention to solve its technical problem is: to provide a medium rail bending machine, including a control panel, a bending machine base and a bending machine platform. The control panel is installed on the front right side of the bending machine base. The bending machine platform is installed on the bending machine base. A sliding platform that can move left and right is installed on the upper right side of the bending machine platform. An injection arm module that can move back and forth is installed on the upper surface of the sliding platform. A bending arm is rotatably installed on the upper right side of the sliding platform. A pressing mold is installed on the bending arm. A rear base is installed on the rear side of the bending machine base. The bending machine base includes a base, a table panel, inclined side plates, and side support plates. The table panel is vertically installed on both the front and rear sides of the base. Both ends of the table panel are inclined towards the base to form inclined side plates. The upper surfaces of the base are vertically installed with side support plates at both ends. The inclined side plates cover the front or rear ends of the side support plates. Rectangular protruding columns are horizontally installed on the upper surfaces of both ends of the base.

[0005] In this technical solution, a sliding platform that moves left and right is installed to facilitate the bending machine to adjust its position according to the product length. A bending arm is installed to facilitate the installation of the pressing mold, which can fix the strip-shaped product. At the same time, an injection arm module is installed to fix one end of the product, so that the bending arm can achieve bending and positioning of the product when bending.

[0006] In this technical solution, a machine base is used to improve the structural strength of the bottom of the bending machine base. The two ends of the machine base adopt a triangular structure that gradually narrows at the ends, which can strengthen the structure of this part. At the same time, rectangular protruding columns are set to further improve the structural strength of this part. The installation of the machine base panel and inclined side plates reduces the overall weight of the bending machine base. Meanwhile, the inclined side plates can effectively improve the structural strength of the upper part of the bending machine base. The side support plates are used to close the two sides of the bending machine base, which also reduces the overall weight of the bending machine base.

[0007] As a supplement to this technical solution, the rear base includes a longitudinal machine platform, a power distribution cabinet and a hydraulic oil conveying motor. The front end of the longitudinal machine platform is inserted into the rear part of the bending machine base. The hydraulic oil conveying motors are installed side by side on the upper surface of the longitudinal machine platform. The power distribution cabinet is embedded in the left and right parts of the upper surface of the longitudinal machine platform. In this technical solution, the overall size is reduced by setting up a longitudinal machine platform, which also facilitates the separate arrangement and transportation of the equipment. The installation of a power distribution cabinet facilitates the control of the hydraulic system and electrical circuits of the equipment, and the installation of a hydraulic oil delivery motor facilitates the output of hydraulic oil.

[0008] As a supplement to this technical solution, the longitudinal machine base is provided with an oil tank structure extending into the bending machine base. A hydraulic oil separator module is vertically installed in the bending machine base. Two oil supply pipelines connected to the hydraulic oil separator module are installed on the longitudinal machine base. Two return oil filter elements are installed side by side at the front end of the oil tank structure. The return oil filter elements are connected to the hydraulic oil separator module through pipelines. The hydraulic oil separator module is connected to the pressing mold and the injection arm module through two hydraulic oil pipelines respectively.

[0009] In this technical solution, a hydraulic oil separator module is installed to deliver hydraulic oil to the press mold and injection arm module, and two return oil filters are installed to facilitate the return of hydraulic oil.

[0010] As a supplement to this technical solution, an oil inlet connected to the oil tank structure is installed at the upper rear end of the longitudinal machine tool, and two cooling pipe joints are installed side by side at the lower rear end of the longitudinal machine tool. A return-flow cooling pipe connecting the two cooling pipe joints is installed inside the oil tank structure.

[0011] This technical solution facilitates the injection of hydraulic oil by setting an oil inlet, allows for easy connection with external cooling pipelines by installing a cooling pipe joint, and facilitates the cooling of the hydraulic oil in the tank by setting a return-flow cooling pipe.

[0012] As a supplement to this technical solution, a rear support bracket is installed laterally on the lower rear end of the longitudinal machine platform. Several support structures are installed at both ends of the rear support bracket and at the bottom of the bending machine base. In this technical solution, the support structures are used to support the equipment.

[0013] As a supplement to this technical solution, the press mold includes a track fixing mold, an end positioning mold and a side positioning component. The track fixing mold is horizontally installed on the bending arm. An end positioning mold is installed on the right end of the track fixing mold. A side positioning component corresponding to the front right end of the track fixing mold is installed on the bending machine platform.

[0014] The product is fixed by installing a track fixing mold and an end positioning mold. When bending, the track fixing mold can move with the bending arm, allowing the track fixing mold to rotate around the end positioning mold.

[0015] As a supplement to this technical solution, the bending machine platform includes a platform body, a horizontal push cylinder, and a horizontal slide rail. A rotary motor mounting port is provided at the middle of the right end of the platform body, and a drive gear mounting port is provided to the right of the rotary motor mounting port. Two horizontal slide rails are installed side by side on the right side of the upper end face of the platform body, and a horizontal push cylinder is installed between the two horizontal slide rails. The main shaft of the horizontal push cylinder extends to the left, and a connecting slider is installed on the main shaft of the horizontal push cylinder. The connecting slider is connected to the lower side of the sliding platform.

[0016] Two longitudinal connecting blocks are installed on the lower end face of the platform body at the location where the horizontal push cylinder is installed. A cylinder fixing block is installed on the lower side of the two longitudinal connecting blocks. The cylinder fixing block and the left or right end of the horizontal push cylinder are connected.

[0017] In this technical solution, a horizontal push cylinder is used to push the sliding platform, so that the sliding platform can move along the horizontal slide rail.

[0018] As a supplement to this technical solution, four sliding feet that connect with the transverse slide rail are installed on the lower end surface of the sliding platform. The installation of sliding feet facilitates the smooth movement of the sliding platform.

[0019] As a supplement to this technical solution, a gas spring structure parallel to the horizontal push cylinder is installed on the lower end face of the platform body and the front side of the horizontal push cylinder. The main shaft of the gas spring structure faces horizontally to the right, and a connector is installed at the end of the main shaft of the gas spring structure. The connector and the connecting slider are connected by a connecting piece. In this technical solution, the gas spring structure is installed to facilitate the stable movement of the sliding platform.

[0020] As a supplement to this technical solution, a longitudinal mounting groove is provided on the upper surface of the connecting slider, and a buffer rubber strip is installed in the longitudinal groove. The buffer rubber strip is used to reduce the vibration generated when the connecting slider moves and reduce the noise during operation.

[0021] As a supplement to this technical solution, the sliding platform includes a sliding base plate and a limiting extension edge. Two limiting extension edges arranged longitudinally are symmetrically installed on the upper surface of the sliding base plate. A groove structure is provided at the lower part of the opposite side of the limiting extension edge. A base that engages with the groove structure is installed at the lower end of the injection arm module.

[0022] In this technical solution, the base is positioned by setting a limiting extension edge, thereby enabling the injection arm module to be finely adjusted and moved.

[0023] As a supplement to this technical solution, an adjustment seat is installed on the rear part of the upper end face of the sliding base plate. A first driving worm gear arranged in a horizontal direction is installed in the upper part of the adjustment seat. An adjustment screw is installed in the adjustment seat in a longitudinally rotating manner. The external thread of the adjustment screw and the adjustment seat form a threaded connection. A worm wheel structure that meshes with the first driving worm gear is installed on the adjustment screw. The front end of the adjustment screw and the lower rear side of the injection arm module form a rotational match.

[0024] In this technical solution, an adjustment seat is installed to facilitate the control of the injection arm module to move back and forth. The first drive worm can drive the adjustment screw to rotate, and the adjustment screw uses a threaded structure to make the injection arm module move back and forth.

[0025] The adjusting seat is equipped with a locking bolt that can abut against the first driving worm gear.

[0026] As a supplement to this technical solution, the injection arm module includes a base, vertical panels, and an upper transmission platform. Two vertical panels are symmetrically installed on the front and rear sides of the upper end of the base. The upper transmission platform is installed between the upper ends of the vertical panels. A lifting motor with a main shaft passing through the upper transmission platform is installed on the right side of the lower end of the upper transmission platform. A lifting shaft with its lower end passing through the upper transmission platform is vertically installed in the middle of the upper transmission platform. A driven wheel is rotatably installed on the lifting shaft. A first pulley assembly that drives the driven wheel is installed on the main shaft of the lifting motor.

[0027] In this technical solution, a vertical panel is installed as the main support for the injection arm module, and an upper transmission platform is installed to facilitate the installation of the lifting motor. The lifting motor drives the first pulley assembly, the first pulley assembly drives the driven wheel, and the driven wheel drives the lifting shaft.

[0028] As a supplement to this technical solution, a core clamping block is slidably installed inside the injection arm module, an injection cylinder assembly is installed on the right end of the core clamping block, and a rotary drive module is installed on the upper side of the core clamping block.

[0029] As a supplement to this technical solution, vertical slide rails are installed on opposite sides of the vertical panels, and plug-in core clamping blocks that move up and down are installed between the vertical panels. The vertical slide rails are used to facilitate the up and down sliding of the plug-in core clamping blocks.

[0030] As a supplement to this technical solution, a connecting shaft that connects with the insert / removable core clamping block is installed on the lower end of the lifting shaft. By installing the connecting shaft, the lifting shaft can drive the insert / removable core clamping block to move up and down.

[0031] As a supplement to this technical solution, an injection cylinder assembly is installed on the right end of the insert / removable core clamping block, and a rotation drive module is installed on the upper side of the insert / removable core clamping block. The injection cylinder assembly is installed to facilitate the insertion / removable core clamping block to be injected to the right, and the rotation drive module is installed to enable the insert / removable core clamping block to rotate.

[0032] As a supplement to this technical solution, the insertion / removal core clamping block includes a lifting slider, a clamping base, and a clamping opening. The lifting slider is slidably mounted between vertical slide rails. The clamping base is mounted on the left side of the lifting slider. A clamping opening is provided in the middle of the left side of the clamping base. A clamping port positioning block is embedded in the rear side wall of the clamping opening. A clamping cylinder with its spindle facing backward is mounted on the front side of the clamping base. A clamping port slider that matches the clamping port positioning block is mounted on the spindle of the clamping cylinder.

[0033] In this technical solution, a lifting slider is used to facilitate docking with the vertical slide rail, a clamping base is used to facilitate the installation of the clamping port positioning block, a clamping cylinder is used to facilitate pushing the clamping port slider, and the clamping port slider is used to clamp and fix the clamping opening.

[0034] As a supplement to this technical solution, the injection cylinder assembly includes a connecting housing, an injection cylinder, and an insertion core mounting base. The connecting housing is internally hollow and is installed on the right side of the insertion core clamping block. An injection cylinder with its main shaft extending to the left is installed on the right end of the connecting housing. The main shaft of the injection cylinder is inserted into the insertion core clamping block. An insertion core mounting base that moves left and right is installed inside the insertion core clamping block. The insertion core mounting base is connected to the main shaft of the injection cylinder. A transmission turntable is rotatably installed inside the lifting slider. The right side of the transmission turntable is connected to the clamping base. A rectangular notch is provided in the middle of the transmission turntable.

[0035] In this technical solution, the installation of the connecting housing facilitates the installation of the injection cylinder, the installation of the insertion core mounting seat facilitates the installation of the insertion core, the installation of the injection cylinder facilitates the injection of the insertion core mounting seat, the installation of the rectangular notch avoids interference between the injection cylinder and the transmission turntable, and the installation of the transmission turntable drives the clamping base to rotate.

[0036] As a supplement to this technical solution, the rotary drive module includes a rotary spindle, a second drive worm gear, and a rotary motor. A rotary motor with its spindle facing left is mounted on the upper side of the lifting slider. A longitudinally mounted rotary spindle is mounted on the upper part of the lifting slider. The rear end of the rotary spindle passes through the lifting slider. The rear end of the lifting slider and the spindle of the rotary motor are connected by a second pulley assembly. A second drive worm gear is mounted in the middle of the rotary spindle. A driven worm gear is mounted on the transmission turntable. The driven worm gear and the second drive worm gear form a matching mesh.

[0037] A rotary motor is installed to facilitate the rotation of the main shaft. The second drive worm on the main shaft drives the driven worm wheel, which in turn drives the transmission turntable to rotate.

[0038] As a supplement to this technical solution, an insertion core is installed on the left side of the insertion core mounting base.

[0039] As a supplement to this technical solution, a bending motor assembly for controlling the rotation of the bending arm is installed on the lower left end face of the bending machine platform. The bending motor assembly includes a bending motor, a drive gear, and a driven gear. The bending motor is vertically installed on the bending machine platform, and the main shaft of the bending motor is vertically inserted into the rotary motor mounting port. The drive gear connected to the bending motor is installed in the rotary motor mounting port, and the driven gear meshing with the drive gear is installed in the drive gear mounting port. The driven gear is in contact with the lower end face of the bending arm.

[0040] In this technical solution, the bending motor is used to drive the rotation of the driving gear, which in turn drives the driven gear, which in turn drives the bending arm to rotate.

[0041] As a supplement to this technical solution, the left end of the bending machine platform is provided with an arc-shaped extension structure, and two brake calipers corresponding to the arc-shaped extension structure are installed on the lower side of the bending arm. By installing the brake calipers, the bending arm can be clamped and fixed after it is rotated into position.

[0042] As a supplement to this technical solution, the track fixing mold includes a mounting bracket, a transverse positioning platform, and a pressure plate structure. The mounting bracket has two vertically symmetrically mounted on the curved arm. The mounting bracket is equipped with a transverse positioning platform. Two positioning cylinders with their main shafts facing downwards are vertically symmetrically mounted on both ends of the upper surface of the transverse positioning platform. The main shaft of the positioning cylinder is equipped with a fixed docking seat that mates with the transverse positioning platform. The lower end of the cylinder body of the two positioning cylinders is equipped with a pressure plate structure. Both sides of the fixed docking seat are equipped with limiting protrusions whose upper ends can be inserted into the pressure plate structure. A horizontal strip-shaped installation notch is provided on the front side of the transverse positioning platform.

[0043] In this technical solution, a mounting bracket is used to facilitate the installation of the horizontal positioning platform, and a positioning cylinder is used to drive the pressure plate structure so that the pressure plate structure can hold the product. By installing an inverted positioning cylinder, energy consumption at this point is reduced. When the positioning cylinder is driven, the main shaft of the positioning cylinder extends, and the pressure plate structure can rise. When the positioning cylinder stops working, the pressure plate structure can descend, so that the pressure plate structure can hold the product.

[0044] As a supplement to this technical solution, the rotation centers of the end positioning mold and the bending arm are aligned. The end positioning mold includes a cylindrical base, a receiving annular groove, an end pressure plate, and an end pressing cylinder. The cylindrical base vertically passes through the bending arm and connects with the bending machine platform. A concave receiving annular groove is provided at the upper end of the cylindrical base. An end pressing cylinder with its main shaft facing downward is vertically installed at the center of the upper end face of the cylindrical base. The end of the main shaft of the end pressing cylinder is fixedly connected to the cylindrical base. An end pressure plate is installed on the lower cylinder body of the end pressing cylinder.

[0045] In this technical solution, a cylindrical base is installed to facilitate the installation of the end pressing cylinder, and an end pressure plate is installed to ensure that the end pressure plate can press down on the end of the product.

[0046] As a supplement to this technical solution, the side positioning component includes a side cylinder mounting bracket, a positioning block base, a side positioning slider, and a side cylinder. The side cylinder mounting bracket is vertically mounted on the bending machine platform. The side cylinder mounting bracket is aligned with the front right side of the track fixing mold. A positioning block base extending towards the track fixing mold is mounted on the side cylinder mounting bracket. Two side cylinders with their main shafts facing backward are mounted side by side on the front upper end of the positioning block base. A side positioning slider capable of moving back and forth is mounted side by side on the rear upper end of the positioning block base. The main shaft of the side cylinder is connected to the side positioning slider.

[0047] As a supplement to this technical solution, a first pipe mounting bracket arranged at an incline is installed at the lower end face of the bending arm on the bending machine platform, and a second pipe mounting bracket arranged longitudinally is installed on the bending arm. A first pipe rack is installed on one side of the first pipe mounting bracket, and a second pipe rack is installed on one side of the second pipe mounting bracket.

[0048] As a supplement to this technical solution, the first pipe mounting bracket and the second pipe mounting bracket, when projected vertically, form an angle of 45° to 60°.

[0049] As a supplement to this technical solution, two triangular support plates are symmetrically arranged at the joint between the upper end face of the longitudinal machine platform and the rear side of the bending machine base.

[0050] Beneficial effects: This invention relates to a medium-track bending machine. By installing a sliding platform that moves left and right, the bending machine can be easily adjusted according to the product length. By installing a bending arm, it is easy to install a pressing mold, which can fix the strip-shaped product. At the same time, by installing an injection arm module, one end of the product can be fixed. Thus, the bending arm can achieve bending and positioning of the product when bending. It has the characteristics of small size, firm clamping, low production cost, high bending efficiency, and accurate positioning. Attached Figure Description

[0051] Figure 1 This is a structural view of the present invention; Figure 2 This is a structural view of the bending machine platform described in this invention; Figure 3 This is a top view of the bending machine platform described in this invention; Figure 4 This is a front view of the bending machine platform described in this invention; Figure 5 This is a bottom view of the bending machine platform described in this invention; Figure 6 This is a structural view of the gas spring structure described in this invention; Figure 7 This is the present invention. Figure 6 A magnified view of a section at point A in the middle; Figure 8 This is a structural view of the transverse thrust cylinder described in this invention; Figure 9 This is a front view of the injection cylinder assembly and injection arm module described in this invention; Figure 10 This is a structural view of the first driving worm gear described in this invention; Figure 11 This is a structural view of the lifting slider described in this invention; Figure 12 This is the present invention. Figure 11 A magnified view of a section at point B in the middle; Figure 13 This is a structural view of the rotary drive module described in this invention; Figure 14 This is a structural view of the clamping port positioning block described in this invention; Figure 15 This is a structural view of the drive gear described in this invention; Figure 16 This is a structural view of the press-fit mold described in this invention; Figure 17 This is a structural view of the end positioning mold described in this invention; Figure 18 This is a structural view of the end pressure plate described in this invention; Figure 19 This is a structural view of the inclined side plate described in this invention; Figure 20 This is a structural view of the rear side of the longitudinal machine tool described in this invention; Figure 21 This is a top view of the base of the bending machine described in this invention; Figure 22 This is a structural view of the side support plate described in this invention; Figure 23 This is a structural view of the rectangular protruding pillar described in this invention; Figure 24 This is a structural view of the recirculation cooling pipe described in this invention; Figure 25 This is a structural view of the second pipeline rack described in this invention.

[0052] Illustrations: 1. Control panel; 2. Bending machine base; 3. Bending machine platform; 4. Sliding platform; 5. Bending arm; 6. Press mold; 7. Injection arm module; 8. Rear base; 9. Injection cylinder assembly; 10. Rotary drive module; 11. Insert / extract core clamping block; 12. End positioning mold; 13. Bending motor assembly; 14. Rail fixing mold; 15. Side positioning assembly; 16. Platform body; 17. Horizontal push cylinder; 18. Connecting slider; 19. Buffer strip; 20. Horizontal slide rail; 21. Sliding support; 22. Drive gear mounting port; 23. Rotary motor mounting port; 24. Gas spring structure; 25. Connector; 6. Connecting piece; 27. Longitudinal connecting block; 28. Cylinder fixing block; 29. ​​Sliding base plate; 30. Limiting extension edge; 31. Base; 32. Vertical panel; 33. Upper transmission platform; 34. Lifting motor; 35. Connecting housing; 36. Injection cylinder; 37. Adjusting seat; 38. First drive worm gear; 39. Adjusting screw; 40. Locking bolt; 41. First pulley assembly; 42. Lifting shaft; 43. Driven wheel; 44. Connecting shaft; 45. Vertical slide rail; 46. Lifting slider; 47. Clamping base; 48. Clamping opening; 49. Clamping cylinder; 50. Insertion core; 51. Rectangular notch; 52. Transmission turntable; 5 3. Rotary motor; 54. Insertion core mounting base; 55. Clamping port positioning block; 56. Clamping port slider; 57. Second pulley assembly; 58. Driven worm gear; 59. Second drive worm; 60. Rotary spindle; 61. Brake caliper; 62. Bending motor; 63. Arc-shaped extension structure; 64. Driven gear; 65. Drive gear; 66. End pressing cylinder; 67. End pressure plate; 68. Mounting bracket; 69. Lateral positioning stage; 70. Positioning cylinder; 71. Pressure plate structure; 72. Fixed docking seat; 73. Limiting protrusion; 74. Receiving annular groove; 75. Cylindrical base; 76. Side cylinder mounting bracket; 77. Positioning block base 78. Side cylinder; 79. Side positioning slider; 80. Machine base panel; 81. Longitudinal machine base; 82. Electrical control cabinet; 83. Hydraulic oil conveying motor; 84. Oil inlet; 85. Cooling pipe joint; 86. Oil supply pipeline; 87. Oil tank structure; 88. Return oil filter element; 89. Hydraulic oil separator module; 90. Inclined side plate; 91. Side support plate; 92. Support leg structure; 93. Rear support leg bracket; 94. Triangular support plate; 95. Return cooling pipe; 96. Rectangular protruding column; 97. Machine base; 98. Second pipeline mounting bracket; 99. First pipeline mounting bracket; 100. Second pipeline rack; 101. First pipeline rack. Detailed Implementation

[0053] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0054] Embodiments of the present invention relate to a medium track bending machine, such as... Figure 1 — Figure 8 As shown, the machine includes a control panel 1, a bending machine base 2, and a bending machine platform 3. The control panel 1 is installed on the front right side of the bending machine base 2. The bending machine platform 3 is installed on the bending machine base 2. A sliding platform 4 that can move left and right is installed on the upper right side of the bending machine platform 3. An injection arm module 7 that can move back and forth is installed on the upper surface of the sliding platform 4. A bending arm 5 is rotatably installed on the upper right side of the sliding platform 4. A pressing mold 6 is installed on the bending arm 5. A rear base 8 is installed on the rear side of the bending machine base 2. like Figure 19 — Figure 23 As shown, the bending machine base 2 includes a machine base 97, a machine panel 80, inclined side plates 90, and side support plates 91. The machine panel 80 is vertically installed on both the front and rear sides of the machine base 97. Both ends of the machine panel 80 are inclined towards the machine base 97 to form inclined side plates 90. The side support plates 91 are vertically installed on both ends of the upper surface of the machine base 97. The inclined side plates 90 cover the front or rear end of the side support plates 91. Rectangular protruding columns 96 are horizontally installed on the upper surfaces of both ends of the machine base 97.

[0055] In this technical solution, a sliding platform 4 that moves left and right is installed to facilitate the bending machine to adjust its position according to the product length. A bending arm 5 is installed to facilitate the installation of a pressing mold 6, which can fix the strip-shaped product. At the same time, an injection arm module 7 is installed to fix one end of the product, so that the bending arm 5 can achieve bending and positioning of the product when bending.

[0056] In this technical solution, a machine base 97 is used to improve the structural strength of the bottom of the bending machine base 2. The two ends of the machine base 97 adopt a triangular structure with gradually narrowing ends, which can strengthen the structure of this part. At the same time, rectangular protruding columns 96 are set to further improve the structural strength of this part. By installing the machine panel 80 and the inclined side plate 90, the overall weight of the bending machine base 2 is reduced. Meanwhile, the inclined side plate 90 can effectively improve the structural strength of the upper part of the bending machine base 2. At the same time, the side support plate 91 is used to close the two sides of the bending machine base 2, which also reduces the overall weight of the bending machine base 2.

[0057] like Figure 20 As shown, as a supplement to this technical solution, the rear base 8 includes a longitudinal machine platform 81, a power distribution cabinet 82, and a hydraulic oil conveying motor 83. The front end of the longitudinal machine platform 81 is inserted into the rear of the bending machine base 2. The hydraulic oil conveying motor 83 is installed side by side on the upper surface of the longitudinal machine platform 81. The power distribution cabinet 82 is embedded in the left and right parts of the upper surface of the longitudinal machine platform 81. In this technical solution, the longitudinal machine platform 81 is set up to reduce the overall volume, while facilitating the separate arrangement and transportation of the equipment. The power distribution cabinet 82 is installed to facilitate the control of the hydraulic system and electrical circuit of the equipment, and the hydraulic oil delivery motor 83 is installed to facilitate the output of hydraulic oil.

[0058] like Figure 21 As shown, as a supplement to this technical solution, the longitudinal machine base 81 is provided with an oil tank structure 87 extending into the bending machine base 2. A hydraulic oil separator module 89 is vertically installed in the bending machine base 2. Two oil supply pipelines 86 connected to the hydraulic oil separator module 89 are installed on the longitudinal machine base 81. Two return oil filter elements 88 are installed side by side at the front end of the oil tank structure 87. The return oil filter elements 88 are connected to the hydraulic oil separator module 89 through pipelines. The hydraulic oil separator module 89 is connected to the pressing mold 6 and the injection arm module 7 through two hydraulic oil pipelines respectively.

[0059] In this technical solution, a hydraulic oil distribution module 89 is installed to deliver hydraulic oil to the press mold 6 and the injection arm module 7, and two return oil filters 88 are installed to facilitate the return of hydraulic oil.

[0060] like Figure 24 As a supplement to this technical solution, an oil inlet 84 communicating with the oil tank structure 87 is installed on the upper rear end of the longitudinal machine tool 81, and two cooling pipe joints 85 are installed side by side on the lower rear end of the longitudinal machine tool 81. A return-flow cooling pipe 95 connecting the two cooling pipe joints 85 is installed inside the oil tank structure 87.

[0061] In this technical solution, the oil inlet 84 is provided to facilitate the injection of hydraulic oil, the cooling pipe joint 85 is installed to facilitate connection with the external cooling pipe, and the return cooling pipe 95 is provided to facilitate the cooling of the hydraulic oil in the oil tank.

[0062] As a supplement to this technical solution, a rear support bracket 93 is installed laterally on the lower rear end of the longitudinal machine platform 81. Several support structures 92 are installed at both ends of the rear support bracket 93 and at the bottom of the bending machine base 2. In this technical solution, the support structures 92 are used to support the equipment.

[0063] As a supplement to this technical solution, the pressing mold 6 includes a track fixing mold 14, an end positioning mold 12 and a side positioning component 15. The track fixing mold 14 is horizontally mounted on the bending arm 5. The end positioning mold 12 is installed on the right end of the track fixing mold 14. The side positioning component 15, which corresponds to the front right end of the track fixing mold 14, is installed on the bending machine platform 3.

[0064] The product is fixed by installing the track fixing mold 14 and the end positioning mold 12. When bending, the track fixing mold 14 can move with the bending arm 5, so that the track fixing mold 14 can rotate around the end positioning mold 12.

[0065] As a supplement to this technical solution, the bending machine platform 3 includes a platform body 16, a horizontal push cylinder 17, and a horizontal slide rail 20. A rotary motor mounting port 23 is provided at the middle of the right end of the platform body 16, and a drive gear mounting port 22 is provided on the right side of the rotary motor mounting port 23. Two horizontal slide rails 20 are installed side by side on the right side of the upper end face of the platform body 16, and a horizontal push cylinder 17 is installed between the two horizontal slide rails 20. The main shaft of the horizontal push cylinder 17 extends to the left, and a connecting slider 18 is installed on the main shaft of the horizontal push cylinder 17. The connecting slider 18 is connected to the lower side of the sliding platform 4.

[0066] like Figure 8 As shown, two longitudinal connecting blocks 27 are installed on the lower end face of the platform body 16 at the position where the horizontal push cylinder 17 is installed. A cylinder fixing block 28 is installed on the lower side of the two longitudinal connecting blocks 27. The cylinder fixing block 28 and the left or right end of the horizontal push cylinder 17 are connected.

[0067] In this technical solution, a horizontal push cylinder 17 is set to push the sliding platform 4, so that the sliding platform 4 can move along the horizontal slide rail 20.

[0068] As a supplement to this technical solution, four sliding feet 21 that connect with the transverse slide rail 20 are installed on the lower end surface of the sliding platform 4. The installation of the sliding feet 21 is to facilitate the smooth movement of the sliding platform 4.

[0069] As a supplement to this technical solution, a gas spring structure 24 parallel to the horizontal push cylinder 17 is installed on the lower end face of the platform body 16 and the front side of the horizontal push cylinder 17. The main shaft of the gas spring structure 24 is horizontally to the right, and a connector 25 is installed at the end of the main shaft of the gas spring structure 24. The connector 25 and the connecting slider 18 are connected by a connecting piece 26. In this technical solution, the gas spring structure 24 is installed to facilitate the stable movement of the sliding platform 4.

[0070] As a supplement to this technical solution, a longitudinal mounting groove is provided on the upper surface of the connecting slider 18, and a buffer rubber strip 19 is installed in the longitudinal groove. The buffer rubber strip 19 is used to reduce the vibration generated when the connecting slider 18 moves and reduce the noise during operation.

[0071] like Figure 9 As shown, as a supplement to this technical solution, the sliding platform 4 includes a sliding base plate 29 and a limiting extension edge 30. Two longitudinally arranged limiting extension edges 30 are symmetrically installed on the upper surface of the sliding base plate 29. A groove structure is provided at the lower part of the opposite side of the limiting extension edge 30. A base 31 that is inserted into the groove structure is installed at the lower end of the injection arm module 7.

[0072] In this technical solution, the base 31 is positioned by setting a limiting extension edge 30, thereby enabling the injection arm module 7 to be finely adjusted and moved.

[0073] like Figure 10 — Figure 12 As shown, as a supplement to this technical solution, an adjusting seat 37 is installed on the rear part of the upper end face of the sliding base plate 29. A first driving worm gear 38 arranged laterally is installed in the upper part of the adjusting seat 37. An adjusting screw 39 that is installed in the adjusting seat 37 is installed in the adjusting seat 37 in a longitudinally rotating manner. The external thread of the adjusting screw 39 and the adjusting seat 37 form a threaded connection. A worm wheel structure that meshes with the first driving worm gear 38 is installed on the adjusting screw 39. The front end of the adjusting screw 39 and the lower rear side of the injection arm module 7 form a rotational match.

[0074] In this technical solution, the installation of the adjustment seat 37 is used to facilitate the control of the injection arm module 7 to move back and forth. The first drive worm gear 38 can drive the adjustment screw 39 to rotate. The adjustment screw 39 uses a threaded structure to make the injection arm module 7 move back and forth.

[0075] The adjusting seat 37 is equipped with a locking bolt 40 that can abut against the first driving worm gear 38.

[0076] like Figure 11 and Figure 12As shown, as a supplement to this technical solution, the injection arm module 7 includes a base 31, a vertical panel 32, and an upper transmission platform 33. Two vertical panels 32 are symmetrically installed on the front and rear sides of the upper end of the base 31. The upper transmission platform 33 is installed between the upper ends of the vertical panels 32. A lifting motor 34 with its main shaft passing through the upper transmission platform 33 is installed on the right side of the lower end of the upper transmission platform 33. A lifting shaft 42 with its lower end passing through the upper transmission platform 33 is vertically installed in the middle of the upper transmission platform 33. A driven wheel 43 is rotatably installed on the lifting shaft 42. A first pulley assembly 41 that drives the driven wheel 43 is installed on the main shaft of the lifting motor 34.

[0077] In this technical solution, a vertical panel 32 is installed as the main support for the injection arm module 7, and an upper transmission platform 33 is installed to facilitate the installation of the lifting motor 34. The lifting motor 34 drives the first pulley assembly 41, the first pulley assembly 41 drives the driven wheel 43, and the driven wheel 43 drives the lifting shaft 42.

[0078] As a supplement to this technical solution, a core clamping block 11 is slidably installed inside the injection arm module 7, an injection cylinder assembly 9 is installed on the right end of the core clamping block 11, and a rotary drive module 10 is installed on the upper side of the core clamping block 11.

[0079] As a supplement to this technical solution, vertical slide rails 45 are installed on opposite sides of the vertical panel 32, and plug-in core clamping blocks 11 that can move up and down are installed between the vertical panels 32. The installation of vertical slide rails 45 is used to facilitate the up and down sliding of the plug-in core clamping blocks 11.

[0080] As a supplement to this technical solution, a connecting shaft 44 that docks with the insert / removable core clamping block 11 is installed on the lower end of the lifting shaft 42. By installing the connecting shaft 44, the lifting shaft 42 can drive the insert / removable core clamping block 11 to move up and down.

[0081] As a supplement to this technical solution, an injection cylinder assembly 9 is installed on the right end of the insertion and extraction core clamping block 11, and a rotation drive module 10 is installed on the upper side of the insertion and extraction core clamping block 11. The injection cylinder assembly 9 is installed to facilitate the insertion and extraction core clamping block 11 to be injected to the right, and the rotation drive module 10 is installed to enable the insertion and extraction core clamping block 11 to rotate.

[0082] like Figure 10 — Figure 13As shown, as a supplement to this technical solution, the insert / extractor clamping block 11 includes a lifting slider 46, a clamping base 47, and a clamping opening 48. The lifting slider 46 is slidably mounted between vertical slide rails 45. The clamping base 47 is mounted on the left side of the lifting slider 46. The clamping opening 48 is provided in the middle of the left side of the clamping base 47. A clamping port positioning block 55 is embedded in the rear side wall of the clamping opening 48. A clamping cylinder 49 with its main shaft facing backward is mounted on the front side of the clamping base 47. A clamping port slider 56 matching the clamping port positioning block 55 is mounted on the main shaft of the clamping cylinder 49.

[0083] In this technical solution, a lifting slider 46 is used to facilitate docking with the vertical slide rail 45, a clamping base 47 is used to facilitate the installation of the clamping port positioning block 55, and a clamping cylinder 49 is used to facilitate pushing the clamping port slider 56. The clamping port slider 56 is used to clamp and fix the clamping opening 48.

[0084] like Figure 14 As shown, as a supplement to this technical solution, the injection cylinder assembly 9 includes a connecting housing 35, an injection cylinder 36, and an insertion core mounting base 54. The connecting housing 35 is internally hollow and is installed on the right side of the insertion core clamping block 11. An injection cylinder 36 with its main shaft extending to the left is installed on the right end of the connecting housing 35. The main shaft of the injection cylinder 36 is inserted into the insertion core clamping block 11. The insertion core clamping block 11 is equipped with an insertion core mounting base 54 that moves left and right. The insertion core mounting base 54 is connected to the main shaft of the injection cylinder 36. A transmission turntable 52 is rotatably installed inside the lifting slider 46. The right side of the transmission turntable 52 is connected to the clamping base 47. A rectangular notch 51 is provided in the middle of the transmission turntable 52.

[0085] In this technical solution, the installation of the connecting housing 35 is used to facilitate the installation of the injection cylinder 36, the installation of the insertion core mounting seat 54 is used to facilitate the installation of the insertion core 50, the installation of the injection cylinder 36 is used to facilitate the injection of the insertion core mounting seat 54, the installation of the rectangular notch 51 is used to avoid interference between the injection cylinder 36 and the transmission turntable 52, and the installation of the transmission turntable 52 is used to drive the clamping base 47 to rotate.

[0086] like Figure 13As shown, as a supplement to this technical solution, the rotary drive module 10 includes a rotary spindle 60, a second drive worm gear 59, and a rotary motor 53. The rotary motor 53 with its spindle facing left is mounted on the upper side of the lifting slider 46. The rotary spindle 60 is mounted longitudinally on the upper part of the lifting slider 46. The rear end of the rotary spindle 60 passes through the lifting slider 46. The rear end of the lifting slider 46 and the spindle of the rotary motor 53 are connected through a second pulley assembly 57. The second drive worm gear 59 is mounted in the middle of the rotary spindle 60. A driven worm gear 58 is mounted on the transmission turntable 52. The driven worm gear 58 and the second drive worm gear 59 form a matching mesh.

[0087] A rotary motor 53 is installed to facilitate the rotation of the main shaft 60. The second drive worm 59 on the main shaft 60 drives the driven worm wheel 58, which in turn drives the transmission turntable 52 to rotate.

[0088] As a supplement to this technical solution, an insertion core 50 is installed on the left side of the insertion core mounting base 54.

[0089] like Figure 15 As shown, as a supplement to this technical solution, a bending motor assembly 13 for controlling the rotation of the bending arm 5 is installed on the lower left end face of the bending machine platform 3. The bending motor assembly 13 includes a bending motor 62, a drive gear 65, and a driven gear 64. The bending motor 62 is vertically mounted on the bending machine platform 3, and the main shaft of the bending motor 62 is vertically inserted into the rotary motor mounting port 23. The drive gear 65 connected to the bending motor 62 is installed in the rotary motor mounting port 23, and the driven gear 64 meshing with the drive gear 65 is installed in the drive gear mounting port 22. The driven gear 64 is in contact with the lower end face of the bending arm 5.

[0090] In this technical solution, the bending motor 62 is used to drive the rotation of the drive gear 65, which in turn drives the driven gear 64, which in turn drives the bending arm 5 to rotate.

[0091] As a supplement to this technical solution, the left end of the bending machine platform 3 is provided with an arc-shaped extension structure 63, and two brake calipers 61 corresponding to the arc-shaped extension structure 63 are installed on the lower side of the bending arm 5. By installing the brake calipers 61, the bending arm 5 can be clamped and fixed after it rotates into place.

[0092] As a supplement to this technical solution, the track fixing mold 14 includes a mounting bracket 68, a transverse positioning platform 69, and a pressure plate structure 71. The mounting bracket 68 has two vertically symmetrically mounted on the curved arm 5. The transverse positioning platform 69 is mounted on the mounting bracket 68. Two positioning cylinders 70 with their main shafts facing downwards are vertically symmetrically mounted at both ends of the upper surface of the transverse positioning platform 69. The main shaft of the positioning cylinder 70 is equipped with a fixed docking seat 72 that mates with the transverse positioning platform 69. The pressure plate structure 71 is mounted on the lower end of the cylinder body of the two positioning cylinders 70. The fixed docking seat 72 has a limiting protrusion 73 on both sides, the upper end of which can be inserted into the pressure plate structure 71. The transverse positioning platform 69 has a horizontal strip-shaped mounting notch on its front side.

[0093] In this technical solution, the mounting bracket 68 is used to facilitate the installation of the transverse positioning table 69, and the positioning cylinder 70 is used to drive the pressure plate structure 71 so that the pressure plate structure 71 can press the product. By installing the inverted positioning cylinder 70, the energy consumption at this point is reduced. When the positioning cylinder 70 is driven, the main shaft of the positioning cylinder 70 extends, and the pressure plate structure 71 can rise. When the positioning cylinder 70 stops working, the pressure plate structure 71 can descend, so that the pressure plate structure 71 can press the product.

[0094] like Figure 16 — Figure 18 As shown, as a supplement to this technical solution, the rotation centers of the end positioning mold 12 and the bending arm 5 are aligned. The end positioning mold 12 includes a cylindrical base 75, a receiving annular groove 74, an end pressure plate 67, and an end pressing cylinder 66. The cylindrical base 75 vertically passes through the bending arm 5 and connects with the bending machine platform 3. A concave receiving annular groove 74 is provided at the upper end of the cylindrical base 75. An end pressing cylinder 66 with its main shaft facing downward is vertically installed at the center of the upper end face of the cylindrical base 75. The end of the main shaft of the end pressing cylinder 66 is fixedly connected to the cylindrical base 75. An end pressure plate 67 is installed on the lower cylinder body of the end pressing cylinder 66.

[0095] In this technical solution, a cylindrical base 75 is installed to facilitate the installation of the end pressing cylinder 66, and an end pressure plate 67 is installed to facilitate the end pressure plate 67 pressing the end of the product.

[0096] As a supplement to this technical solution, the side positioning component 15 includes a side cylinder mounting bracket 76, a positioning block base 77, a side positioning slider 79, and a side cylinder 78. The side cylinder mounting bracket 76 is vertically mounted on the bending machine platform 3. The side cylinder mounting bracket 76 is aligned with the front right side of the track fixing mold 14. The positioning block base 77 extending toward the track fixing mold 14 is mounted on the side cylinder mounting bracket 76. Two side cylinders 78 with their main shafts facing backward are mounted side by side on the front upper end of the positioning block base 77. Side positioning sliders 79 that can move back and forth are mounted side by side on the rear upper end of the positioning block base 77. The main shafts of the side cylinders 78 are connected to the side positioning sliders 79.

[0097] like Figure 25 As shown, as a supplement to this technical solution, the lower end face of the bending arm 5 on the bending machine platform 3 is provided with a first pipe mounting bracket 99 arranged at an inclination, and the bending arm 5 is provided with a second pipe mounting bracket 98 arranged longitudinally. A first pipe rack 101 is provided on one side of the first pipe mounting bracket 99, and a second pipe rack 100 is provided on one side of the second pipe mounting bracket 98.

[0098] As a supplement to this technical solution, the first pipe mounting bracket 99 and the second pipe mounting bracket 98, when projected vertically, form an angle of 45° to 60°.

[0099] As a supplement to this technical solution, two triangular support plates 94 are symmetrically arranged at the joint between the upper end face of the longitudinal machine platform 81 and the rear side of the bending machine base 2.

Claims

1. A medium-speed rail bending machine, characterized in that: The machine includes a control panel (1), a bending machine base (2), and a bending machine platform (3). The control panel (1) is installed on the front right side of the bending machine base (2). The bending machine platform (3) is installed on the bending machine base (2). A sliding platform (4) that moves left and right is installed on the upper right side of the bending machine platform (3). An injection arm module (7) that moves back and forth is installed on the upper surface of the sliding platform (4). A bending arm (5) is rotatably installed on the upper right side of the sliding platform (4). A pressing mold (6) is installed on the bending arm (5). A rear base (8) is installed on the rear side of the bending machine base (2). The pressing mold (6) includes a track fixing mold (14), an end positioning mold (12), and a side positioning component (15). The injection arm module (7) is equipped with a plug-in core clamping block (11) that slides up and down. An injection cylinder assembly (9) is installed on the right end of the plug-in core clamping block (11). A rotary drive module (10) is installed on the upper side of the plug-in core clamping block (11). The insertion and extraction core clamping block (11) includes a lifting slider (46), a clamping base (47), and a clamping opening (48). The lifting slider (46) is slidably installed between vertical slide rails (45). The clamping base (47) is installed on the left side of the lifting slider (46). The clamping opening (48) is provided in the middle of the left side of the clamping base (47). A clamping port positioning block (55) is embedded in the rear side wall of the clamping opening (48). A clamping cylinder (49) with its main shaft facing backward is installed on the front side of the clamping base (47). A clamping port slider (56) matching the clamping port positioning block (55) is installed on the main shaft of the clamping cylinder (49). The injection cylinder assembly (9) includes a connecting housing (35), an injection cylinder (36), and an insertion core mounting base (54). The connecting housing (35) is hollow inside and is installed on the right side of the insertion core clamping block (11). An injection cylinder (36) with its main shaft extending to the left is installed on the right end of the connecting housing (35). The main shaft of the injection cylinder (36) is inserted into the insertion core clamping block (11). An insertion core mounting base (54) that moves left and right is installed inside the insertion core clamping block (11). The insertion core mounting base (54) is connected to the main shaft of the injection cylinder (36). A transmission turntable (52) is rotatably installed inside the lifting slider (46). The right side of the transmission turntable (52) is connected to the clamping base (47). A rectangular notch (51) is provided in the middle of the transmission turntable (52).

2. The medium track bending machine according to claim 1, characterized in that: The bending machine platform (3) includes a platform body (16), a horizontal push cylinder (17) and a horizontal slide rail (20). A rotary motor mounting port (23) is provided at the middle of the right end of the platform body (16). A drive gear mounting port (22) is provided on the right side of the rotary motor mounting port (23). Two horizontal slide rails (20) are installed side by side on the right side of the upper end face of the platform body (16). A horizontal push cylinder (17) is installed between the two horizontal slide rails (20). The main shaft of the horizontal push cylinder (17) extends to the left. A connecting slider (18) is installed on the main shaft of the horizontal push cylinder (17). The connecting slider (18) is connected to the lower side of the sliding platform (4).

3. A medium track bending machine according to claim 1, characterized in that: The sliding platform (4) includes a sliding base plate (29) and a limiting extension edge (30). Two longitudinally arranged limiting extension edges (30) are symmetrically installed on the upper surface of the sliding base plate (29). A groove structure is provided on the lower part of the opposite side of the limiting extension edge (30). A base (31) that fits into the groove structure is installed at the lower end of the injection arm module (7).

4. A medium track bending machine according to claim 1, characterized in that: The injection arm module (7) includes a base (31), a vertical panel (32) and an upper transmission platform (33). Two vertical panels (32) are symmetrically installed on the front and rear sides of the upper end of the base (31). The upper transmission platform (33) is installed between the upper ends of the vertical panels (32). A lifting motor (34) with its main shaft passing through the upper transmission platform (33) is installed on the right side of the lower end of the upper transmission platform (33). A lifting shaft (42) with its lower end passing through the upper transmission platform (33) is vertically installed in the middle of the upper transmission platform (33). A driven wheel (43) is rotatably installed on the lifting shaft (42). A first pulley assembly (41) that drives the driven wheel (43) is installed on the main shaft of the lifting motor (34).

5. A medium track bending machine according to claim 2, characterized in that: A bending motor assembly (13) for controlling the rotation of the bending arm (5) is installed on the lower left end face of the bending machine platform (3). The bending motor assembly (13) includes a bending motor (62), a drive gear (65), and a driven gear (64). The bending motor (62) is vertically installed on the bending machine platform (3). The main shaft of the bending motor (62) is vertically inserted into the rotary motor mounting port (23). The drive gear (65) connected to the bending motor (62) is installed in the rotary motor mounting port (23). The driven gear (64) meshing with the drive gear (65) is installed in the drive gear mounting port (22). The driven gear (64) and the lower end face of the bending arm (5) are in contact.

6. A medium track bending machine according to claim 1, characterized in that: The left end of the bending machine platform (3) is provided with an arc-shaped extension structure (63), and two brake calipers (61) corresponding to the arc-shaped extension structure (63) are installed on the lower side of the bending arm (5).

7. A medium track bending machine according to claim 1, characterized in that: The track fixing mold (14) includes a mounting bracket (68), a transverse positioning platform (69), and a pressure plate structure (71). The mounting bracket (68) has two vertically symmetrically mounted on the curved arm (5). The mounting bracket (68) is equipped with a transverse positioning platform (69). The upper end face of the transverse positioning platform (69) is vertically symmetrically equipped with two positioning cylinders (70) with their main shafts facing downwards. The main shaft of the positioning cylinder (70) is equipped with a fixed docking seat (72) that docks with the transverse positioning platform (69). The lower end of the cylinder body of the two positioning cylinders (70) is equipped with a pressure plate structure (71). The fixed docking seat (72) is equipped with a limiting protrusion (73) on both sides, the upper end of which can be inserted into the pressure plate structure (71). The front side of the transverse positioning platform (69) is provided with a horizontal strip-shaped installation notch.

8. A medium-speed rail bending machine according to claim 1, characterized in that: The rotation centers of the end positioning mold (12) and the bending arm (5) are aligned. The end positioning mold (12) includes a cylindrical base (75), a receiving ring groove (74), an end pressure plate (67), and an end pressing cylinder (66). The cylindrical base (75) passes vertically through the bending arm (5) and connects with the bending machine platform (3). A concave receiving ring groove (74) is provided at the upper end of the cylindrical base (75). An end pressing cylinder (66) with the main shaft facing downward is vertically installed at the center of the upper end face of the cylindrical base (75). The end of the main shaft of the end pressing cylinder (66) is fixedly connected to the cylindrical base (75). An end pressure plate (67) is installed on the lower cylinder body of the end pressing cylinder (66).

9. A medium-speed rail bending machine according to claim 1, characterized in that: The side positioning component (15) includes a side cylinder mounting bracket (76), a positioning block base (77), a side positioning slider (79), and a side cylinder (78). The side cylinder mounting bracket (76) is vertically mounted on the bending machine platform (3). The side cylinder mounting bracket (76) and the right front side of the track fixing mold (14) are aligned. The positioning block base (77) extending toward the track fixing mold (14) is mounted on the side cylinder mounting bracket (76). Two side cylinders (78) with their main shafts facing backward are mounted side by side on the front end of the upper end of the positioning block base (77). Side positioning sliders (79) that can move back and forth are mounted side by side on the rear part of the upper end of the positioning block base (77). The main shaft of the side cylinder (78) and the side positioning slider (79) are connected.

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