Automatic bending machine

Abstract

The invention belongs to the technical field of mechanical equipment, and provides an automatic bending machine which comprises a machine table and a bending mechanism installed on the machine table, the bending mechanism comprises a base frame assembly, a positioning module and a bending module, the base frame assembly is installed on the machine table in a sliding mode, and the positioning module and the bending module are installed on the base frame assembly; the positioning module comprises a first pressing shaft, a first driver and a second driver, the base frame assembly can be accurately moved to a workpiece bending position through the second driver, and the first driver drives the first pressing shaft to press a workpiece; and the bending module comprises a third driver and a bending jig, and the third driver drives the bending jig to bend the workpiece. The bending machine is simple in overall structure and low in manufacturing cost, can be suitable for bending evaporator plates of multiple specifications by replacing the bending jig, and meets the diversified requirements of the market.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical equipment, and in particular relates to an automatic bending machine. Background Art

[0002] Automatic bending machines are widely used in the manufacture of various metal bending parts, which improves production efficiency, reduces manufacturing costs and improves part quality.

[0003] In the prior art, automatic bending machines mainly use motor-driven gears to bend or use hydraulic cylinders to apply force, and control the oil flow in and out of the hydraulic cylinders through solenoid valves to complete the bending. These automatic bending machines have complex mechanical structures and high manufacturing costs. In addition, existing bending machines are not suitable for bending evaporator plates of various specifications and cannot meet the diversified needs of the market.

[0004] Therefore, there is an urgent need for an automatic bending machine to solve one or all of the problems existing in the above-mentioned bending machines. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides an automatic bending machine, comprising:

[0006] A machine platform, wherein the machine platform is provided with a platform, and the platform is a bearing body;

[0007] A bending mechanism, the bending mechanism comprising a base frame assembly and a positioning module and a bending module mounted on the base frame assembly, the base frame assembly being slidably mounted on the table;

[0008] The base frame assembly includes a first base plate, a first mounting seat, a second mounting seat, a first side plate, a first guide rail and a first slider, wherein the first guide rail is fixedly mounted on the top of the table, the first base plate is slidably mounted on the first guide rail through the first slider, the first mounting seat is located on the top of the first base plate, the second mounting seat is located under the first base plate, the first side plate is mounted on the top of the first base plate, and the second mounting seat passes through the table plate;

[0009] The positioning module comprises a second substrate, a second guide rail, a second slider, a first mounting plate, a first connecting member, a first pressing shaft, a first driver and a second driver, wherein the second substrate is fixedly mounted on the first substrate, the first driver is fixedly mounted on the first substrate, the second driver is fixedly mounted under the table through a third mounting seat, and a push rod of the second driver is connected to the first substrate;

[0010] The second guide rail is fastened and mounted on the first mounting plate, the first connecting member is fastened and connected to the first mounting plate, the first pressing shaft is mounted on one side of the first connecting member, the first connecting member is connected to the push rod of the first driver, and the first connecting member is slidably connected to the second base plate through the second sliding block;

[0011] The second driver positions the first substrate, the first driver drives the first pressing shaft to press down, and the first connecting member approaches the first side plate to clamp the workpiece;

[0012] The bending module includes a third substrate, a third driver and a bending jig, the bending jig is fastened on the third substrate, the third substrate is provided with a rotating arm, the rotating arm is rotatably connected to the first mounting seat, the third driver is fastened on the second mounting seat, the push rod of the third driver is connected to the third substrate, the third driver drives the third substrate to drive the bending jig to flip, and the bending jig cooperates with the first pressing shaft to bend the workpiece.

[0013] Optionally, it further comprises a controller, the controller is mounted on the machine platform, and the first driver, the second driver and the third driver are all controlled by the controller;

[0014] The two bending mechanisms are symmetrically arranged on the machine platform, and the controller controls the two bending mechanisms to bend the workpiece simultaneously.

[0015] Optionally, it further includes a centering mechanism, which includes a centering bracket, a fourth driver, a centering adjustment rod, a third guide rail, a third slider, a workpiece receiving plate and a plurality of centering sensors;

[0016] The centering bracket is fixedly mounted on the table, the third guide rail is fixedly mounted on the centering bracket, the centering adjustment rod is slidably mounted on the third guide rail via the third slider, the fourth driver is arranged on the centering bracket and can drive the centering adjustment rod, the workpiece receiving plate is arranged at the end of the centering adjustment rod, and the workpiece receiving plate receives the workpiece;

[0017] The fourth driver and the centering sensor are both electrically connected to the controller, and the controller controls the fourth driver to work through the centering sensor. The centering sensor is installed on the workpiece receiving plate and detects whether the end face of the workpiece abuts against the clamping surface of the workpiece receiving plate.

[0018] Optionally, it further includes a pressing mechanism, wherein the pressing mechanism includes a fourth substrate, a first bracket, a fifth driver, a first connecting arm, a first pressing plate, a fourth guide rail and a fourth slider;

[0019] The fourth base plate is fixedly mounted on the table plate, the first bracket passes through the table plate and is fixedly mounted on one side of the fourth base plate, the fourth guide rail is mounted on the first bracket, the first connecting arm is slidably mounted on the first bracket through the fourth slider, the fifth driver is mounted on the bottom of the first bracket, the push rod of the fifth driver is connected to the first connecting arm, and the first pressing plate is mounted on one end of the first connecting arm;

[0020] The fifth driver is controlled by the controller to operate, and the fifth driver drives the first connecting arm to drive the first pressing plate to press the workpiece.

[0021] Optionally, the positioning module further includes a displacement sensor, which is mounted on the bottom surface of the first substrate. The displacement sensor is electrically connected to the controller, and the controller controls the second driver through the displacement sensor.

[0022] Optionally, the bending jig includes a mold base, a fourth mounting seat and a second pressure shaft, the mold base is fixedly mounted on the third base, the fourth mounting seat is fixedly mounted on the mold base, and the second pressure shaft is rotatably mounted on the fourth mounting seat.

[0023] Optionally, a dovetail portion is formed at the bottom of the mold substrate, and a dovetail groove is provided on the top of the third substrate, and the dovetail groove is installed in conjunction with the dovetail portion.

[0024] Optionally, the bending jig further comprises a handle, and the handle is mounted on one side of the mold substrate.

[0025] Optionally, the positioning module further includes a second connecting arm, and the first pressing shaft is rotatably mounted on one side of the first connecting member through the second connecting arm.

[0026] Optionally, a guide member is provided at one end of the first side plate, and a side surface of the guide member abuts against a side surface of the second connecting arm;

[0027] The upper portion of the guide member is provided with a guiding surface, and the bottom portion of the second connecting arm is provided with a cutting surface.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The automatic bending machine provided by the present invention comprises a machine platform and a bending mechanism installed on the machine platform, the bending mechanism comprises a base frame assembly, a positioning module and a bending module, the base frame assembly can be slidably installed on the machine platform, the positioning module and the bending module are installed on the base frame assembly; the positioning module comprises a first pressing shaft and a second driver of the first driver, the base frame assembly can be accurately moved to the bending position of the workpiece by the second driver, the first driver drives the first pressing shaft to press the workpiece; the bending module comprises a third driver and a bending jig, the third driver drives the bending jig to bend the workpiece. The overall structure of the bending machine is simple, the manufacturing cost is low, and it can be applied to the bending of evaporator plates of various specifications by replacing the bending jig, meeting the diversified needs of the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall layout of the automatic bending machine of the present invention;

[0031] Figure 2 It is a partial three-dimensional schematic diagram of the automatic bending machine of the present invention;

[0032] Figure 3 for Figure 2 Schematic diagram from another perspective;

[0033] Figure 4 is a three-dimensional schematic diagram of the bending mechanism;

[0034] Figure 5 for Figure 4 Schematic diagram from another perspective;

[0035] Figure 6 is a three-dimensional schematic diagram of a base frame assembly;

[0036] Figure 7 It is a three-dimensional schematic diagram of the positioning module;

[0037] Figure 8 It is a three-dimensional schematic diagram of the bending module;

[0038] Fig. 9 It is a three-dimensional schematic diagram of the bending jig;

[0039] Fig.10 It is a three-dimensional schematic diagram of the centering mechanism;

[0040] Fig.11 for Fig.10 A partial enlarged schematic diagram of

[0041] Fig.12 It is a three-dimensional schematic diagram of the clamping mechanism;.

[0042] Illustration Description:

[0043] 1. Machine; 2. Table; 3. Fan; 4. Light; 5. Controller; 6. Through slot; 7. Bending mechanism; 8. Base frame assembly; 9. First substrate; 10. First mounting seat; 11. Second mounting seat; 12. First side plate; 13. First guide rail; 14. First slider; 15. Positioning module; 16. Second substrate; 17. Second guide rail; 18. Second slider; 19. First mounting plate; 20. First connecting member; 21. First pressure shaft; 22. First driver; 23. Second driver; 24. First reinforcing block; 25. Third mounting seat; 26. Abutment plate; 27. Opening slot; 28. Clamping block; 29. ​​Bending module; 30. Third substrate; 31. Third driver; 32. Rotating arm; 33. Bending jig; 34. Die substrate; 35. Fourth mounting seat; 36. Second pressing shaft; 37. Support block; 38. Dovetail; 39. Dovetail groove; 40. Locking block; 41. Handle; 42. Centering mechanism; 43. Centering bracket; 44. Fourth driver; 45. Centering adjustment rod; 46. Third guide rail; 47. Third slider; 48. Workpiece receiving plate; 49. Centering sensor; 50. Placement slot; 51. Clamping surface; 52. Mounting hole; 53. First connecting plate;

[0044] 54. limit switch; 55. clamping mechanism; 56. fourth substrate; 57. first bracket; 58. fifth driver; 59. first connecting arm; 60. first pressure plate; 61. fourth guide rail; 62. fourth slider; 63. displacement sensor; 64. second connecting arm; 65. guide member. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0046] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0047] In addition, in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. 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 it can be indirectly connected through an intermediate medium, it can also be the internal communication of two components, it can be a wireless connection, or it can be a wired connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In addition, the technical features involved in the different embodiments of the present invention described later can be combined with each other as long as they do not conflict with each other.

[0049] like Figure 1-12 The embodiment of the present invention provides an automatic bending machine, including a machine platform 1, which is composed of a frame and a panel of a frame structure. A table 2 is arranged inside the machine platform 1, and the table 2 is mainly used for the installation of a bending mechanism 7. The lower part of the machine platform 1 is a closed box structure, and the box is equipped with a ventilation fan 3, and the fan 3 is mainly used to dissipate heat for the accessories in the box. The upper part of the machine platform 1 is a box structure with a front opening window. The operator can observe the work of each mechanism on the board through the window, and can also feed and discharge the workpiece through the window position. Two symmetrical lighting lamps 4 are installed on the side frame of the window of the machine platform 1, and the lighting lamps 4 provide more sufficient light source inside the window. A control switch and a power switch are installed on the front frame of the window, and the control switch can control the bending machine to perform bending operations on the workpiece. A warning light is installed on the top of the machine platform 1, and the warning light is lit when the equipment is in operation to prompt the operator. A controller 5 is disposed on the side of the machine 1. The controller 5 is preferably a programmable PLC controller 5. The controller 5 controls the bending machine to automatically perform the bending operation, thereby improving production efficiency.

[0050] Furthermore, in the present embodiment, the table 2 is a steel plate, and a plurality of through slots 6 are provided on the upper surface of the table 2. The length direction of the through slots 6 is arranged along the length direction of the table 2. The through slots 6 allow the bending mechanism 7 to pass through the table 2, so that when the bending mechanism 7 moves on the table 2, it will not cause interference. Specifically, the bending mechanism 7 includes a base assembly 8, a positioning module 15 and a bending module 29 installed on the base assembly 8, and the base assembly 8 is slidably installed on the table 2. The base assembly 8 slides on the table 2 and is positioned to the bending position of the workpiece by the positioning module 15, and then the positioning module 15 clamps the workpiece, and finally the bending module 29 performs a bending operation on the workpiece.

[0051] Further, in this embodiment, the base assembly 8 includes a first substrate 9, a first mounting seat 10, a second mounting seat 11, a first side plate 12, a first guide rail 13 and a first slider 14. The first guide rail 13 is fixedly mounted on the top of the table 2, the first slider 14 is adapted to be mounted on the first guide rail 13, the first substrate 9 is a plate structure, the first slider 14 is fixedly mounted on the bottom of the first substrate 9, and the first substrate 9 is slidably mounted on the first guide rail 13 through the first slider 14. The first mounting seat 10 is a split shaft mounting seat, the first mounting seat 10 is fixedly mounted on the top of the first substrate 9 and is used to install the bending module 29. The second mounting seat 11 is fixedly mounted on the bottom of the first substrate 9, the second mounting seat 11 passes through the table 2 and is used to install the third driver 31 of the bending module 29. The first side plate 12 is a plate structure, the first side plate 12 is mounted on the top of the first substrate 9, and the first side plate 12 is used to cooperate with the first connecting member 20 of the positioning module 15 to press the workpiece.

[0052] Further, in the present embodiment, the positioning module 15 includes a second substrate 16, a second guide rail 17, a second slider 18, a first mounting plate 19, a first connector 20, a first pressure shaft 21, a first driver 22 and a second driver 23. The second substrate 16 is vertically fixedly mounted on the first substrate 9, and the second substrate 16 is provided with two first reinforcement blocks 24, which are respectively located at the front and rear sides of the second substrate 16 and fixedly mounted to strengthen the strength of the second substrate 16. The first driver 22 is fixedly mounted on the lower surface of the first substrate 9, and the rear end of the first driver 22 extends toward the table 2 and passes through one of the through slots 6 on the table 2. The first driver 22 is preferably a cylinder. The second driver 23 is fixedly mounted on the lower surface of the table 2 through the third mounting seat 25, and the push rod of the second driver 23 is connected to the first substrate 9. The third mounting seat 25 is fixedly mounted under the table 2 and away from the first substrate 9. An abutment plate 26 is arranged under the first substrate 9. The abutment plate 26 is fixedly mounted under the first substrate 9 and extends toward the table 2 and passes through one of the through slots 6 on the table 2. The push rod of the second driver 23 is fixedly connected to the abutment plate 26. The second driver 23 is preferably an electric cylinder. The second driver 23 drives the first substrate 9 to move.

[0053] Further, the second guide rail 17 is fixedly mounted on the first mounting plate 19, the second slider 18 is adapted to be mounted on the second guide rail 17, the first mounting plate 19 is slidably connected to the second base plate 16 through the second slider 18, and the first connecting member 20 is fixedly connected to the first mounting plate 19, so that the first connecting member 20 can move up and down relative to the second base plate 16. The first connecting member 20 is an L-shaped plate structure, and a protrusion is formed at its front end, and an open groove 27 is arranged on the protrusion. The push rod of the first driver 22 is inserted into the open groove 27 for connection, so that the first driver 22 can drive the first connecting member 20 to move up and down. The first pressing shaft 21 is fixedly mounted at the rear end of the first connecting member 20, and the first pressing shaft 21 is used to determine the bending radius and the bending position during the bending operation. When the bending operation is performed, the second driver 23 drives the first base plate 9 to a predetermined position, that is, to position the first base plate 9, and then the first driver 22 drives the first connecting member 20 to move downward, and the first pressing shaft 21 is pressed downward to position the bending position, and the first connecting member 20 approaches the first side plate 12 to clamp the workpiece. Preferably, a clamping block 28 is further provided at the rear end of the first connecting member 20, and the clamping block 28 clamps the workpiece corresponding to the first side plate 12. The second driver 23 is electrically connected to the controller 5, and both the first driver 22 and the second driver 23 are controlled by the controller 5 to work.

[0054] Further, in the present embodiment, the bending module 29 includes a third substrate 30, a third driver 31 and a bending jig 33. The bending jig 33 is fastened on the third substrate 30. The third substrate 30 is equipped with a symmetrical rotating arm 32. The rotating arm 32 is rotatably connected to the first mounting seat 10. The third driver 31 is fastened on the second mounting seat 11. The push rod of the third driver 31 is connected to the third substrate 30. The third driver 31 is electrically connected to the controller 5. The controller 5 controls the third driver 31 to drive the third substrate 30 to drive the bending jig 33 to flip. The bending jig 33 cooperates with the first pressing shaft 21 to bend the workpiece. Specifically, the third driver 31 is preferably an electric cylinder. The bottom of the third driver 31 is hinged to the second mounting seat 11. The push rod of the third driver 31 is hinged to the bottom surface of the third substrate 30. The third driver 31 passes through one of the through slots 6 on the table 2 with the second mounting seat 11. The third driver 31 drives the third substrate 30 to rotate around the fulcrum of the rotating arm 32 , and then the bending jig 33 can cooperate with the first pressing shaft 21 to perform a bending operation on the workpiece.

[0055] Furthermore, in this embodiment, the bending jig 33 includes a mold base plate 34, a fourth mounting seat 35 and a second pressing shaft 36. The mold base plate 34 is fixedly mounted on the third base plate 30. The fourth mounting seat 35 is a split shaft mounting seat. The fourth mounting seat 35 is fixedly mounted on the mold base plate 34. The second pressing shaft 36 is rotatably mounted on the fourth mounting seat 35. A support block 37 is also provided on the third base plate 30. The support block 37 is fixedly mounted on the mold base plate 34. The support block 37 is used to support the workpiece. In particular, in the bending operation, the support block 37 also squeezes the workpiece from the side to shape the workpiece, which can effectively improve the bending quality of the workpiece.

[0056] Furthermore, a dovetail portion 38 is formed at the bottom of the mold substrate 34 of the present embodiment, and two dovetail portions 38 are symmetrically arranged on the bottom surface of the mold substrate 34. A dovetail groove 39 is arranged on the top of the third substrate 30, and two dovetail grooves 39 are symmetrically arranged on the top of the third substrate 30. The dovetail groove 39 is installed in conjunction with the dovetail portion 38, so that the bending jig 33 can be locked, and the bending jig 33 is limited by two locking blocks 40 to prevent the bending jig 33 from being separated from the third substrate 30. Preferably, in order to facilitate the installation and replacement of the bending jig 33, a handle 41 is also provided on the side of the mold substrate 34, and the handle 41 can lift the bending jig 33. It should be noted that when it is necessary to adapt workpieces of different specifications or to bend the workpieces into products of different specifications as needed, it is only necessary to replace another pair of first pressing shafts 21 and second pressing shafts 36 of different specifications to achieve the bending of workpieces of different specifications.

[0057] Furthermore, in order to meet different bending requirements, the present embodiment symmetrically arranges two bending mechanisms 7 on the machine 1, and the controller 5 controls the two bending mechanisms 7 to bend the workpiece at the same time. In particular, when bending the evaporator plate workpiece, two bending actions can bend the workpiece into a square shape. Specifically, the first substrate 9 is moved to both ends of the evaporator plate, and the first bending is performed after positioning, and then the first substrate 9 is moved to the middle of the evaporator plate, and the second bending is performed after positioning, and finally a square-shaped evaporator product can be obtained.

[0058] Furthermore, in order to improve the bending accuracy of the automatic bending machine, the automatic bending machine also includes a centering mechanism 42, which is used to center and position the workpiece. The centering mechanism 42 includes a centering bracket 43, a fourth driver 44, a centering adjustment rod 45, a third guide rail 46, a third slider 47, a workpiece receiving plate 48 and a plurality of centering sensors 49. Specifically, the centering bracket 43 is a steel plate beam structure, the centering bracket 43 is fastened and mounted on the table 2, two third guide rails 46 are symmetrically fastened and mounted on the centering bracket 43, and two centering adjustment rods 45 are slidably mounted on the third guide rail 46 through the third slider 47. The fourth driver 44 is arranged on the centering bracket 43 and can drive the centering adjustment rod 45. The fourth driver 44 is preferably a motor. The transmission mode of the fourth driver 44 and the centering adjustment rod 45 is preferably a gear rack transmission. The fourth driver 44 is located at the intersection of the center line of the centering bracket 43.

[0059] Furthermore, a workpiece receiving plate 48 is arranged at the end of the centering adjustment rod 45, and the workpiece receiving plate 48 receives the workpiece. The fourth driver 44 and the centering sensor 49 are both electrically connected to the controller 5, and the controller 5 controls the fourth driver 44 to work through the centering sensor 49. The centering sensor 49 is installed on the workpiece receiving plate 48 and detects that the end face of the workpiece abuts against the clamping surface 51 of the workpiece receiving plate 48. The workpiece receiving plate 48 is provided with a placement groove 50, and one side of the placement groove 50 is formed as a clamping surface 51. The centering sensor 49 is a photoelectric sensor, and two mounting holes 52 are provided along the horizontal direction of the clamping surface 51 toward the bottom surface of the workpiece receiving plate 48. The two centering sensors are respectively installed in the two mounting holes 52. When the end face of the workpiece completely contacts the clamping surface 51, the centering sensor sends a centering signal, and the controller 5 controls the fourth driver 44 to stop working, and the centering of the workpiece is completed.

[0060] Furthermore, in this embodiment, in order to facilitate the connection between the centering adjustment rod 45 and the workpiece receiving plate 48, the centering mechanism 42 is further provided with a first connecting plate 53, and the two ends of the first connecting plate 53 are respectively connected to the centering adjustment rod 45 and the workpiece receiving plate 48. In addition, two symmetrical limit switches 54 are provided on the centering bracket 43, and the limit switches 54 are photoelectric sensors, and the limit switches 54 are electrically connected to the controller 5. When the first connecting plate 53 reaches the limit switch 54, the controller 5 stops the fourth driver 44 to prevent the centering adjustment rod 45 from being separated from the fourth driver 44.

[0061] Furthermore, in order to improve the bending efficiency and bending quality of the automatic bending machine, the automatic bending machine also includes a clamping mechanism 55, which is used to clamp the workpiece to prevent the workpiece from being displaced during the bending operation. The clamping mechanism 55 includes a fourth substrate 56, a first bracket 57, a fifth driver 58, a first connecting arm 59, a first pressing plate 60, a fourth guide rail 61 and a fourth slider 62. Specifically, the fourth substrate 56 is fastened and mounted on the table 2, the first bracket 57 is fastened and mounted on one side of the fourth substrate 56, and the first bracket 57 extends to the bottom of the table 2 and passes through one of the through slots 6 on the table 2. The fourth guide rail 61 is mounted on the first bracket 57, the first connecting arm 59 is an L-shaped steel structure, and the first connecting arm 59 is slidably mounted on the first bracket 57 through the fourth slider 62, the fifth driver 58 is installed at the bottom of the first bracket 57, the push rod of the fifth driver 58 is connected to the first connecting arm 59, and the first pressing plate 60 is mounted at one end of the first connecting arm 59. The fifth driver 58 is preferably a cylinder. The fifth driver 58 is controlled by the controller 5. The fifth driver 58 drives the first connecting arm 59 to drive the first pressing plate 60 to approach the fourth substrate 56. The first pressing plate 60 cooperates with the fourth substrate 56 to press the workpiece.

[0062] Furthermore, in the present embodiment, the positioning module 15 further includes a displacement sensor 63, which is mounted on the bottom surface of the first substrate 9. The displacement sensor 63 is electrically connected to the controller 5. The controller 5 controls the operation of the second driver 23 through the displacement sensor 63, thereby controlling the displacement of the first substrate 9. Specifically, the displacement sensor 63 is a photoelectric sensor, the light beam of the displacement sensor 63 is directed toward the workpiece, the displacement sensor 63 detects the moving distance of the first substrate 9, and then the controller 5 controls the second driver 23 according to the displacement information of the sensor. In the present embodiment, after the controller 5 obtains the centering information of the workpiece, it controls to calculate the required displacement of the bending mold according to the preset bending position, and then the controller 5 controls the second driver 23 to drive the first substrate 9 to move from the middle to the end of the workpiece. The displacement of the displacement sensor 63 on the workpiece is equal to the displacement of the first substrate 9. The displacement sensor 63 feeds back the displacement information of the first substrate 9 to the controller 5. When the displacement information meets the required displacement, the controller 5 stops the second driver 23.

[0063] Further, in the present embodiment, the positioning module 15 further includes a second connecting arm 64, and the first pressing shaft 21 is rotatably mounted on one side of the first connecting member 20 through the second connecting arm 64. The second connecting arm 64 is a split shaft connector, and the first pressing shaft 21 is arranged between the second connecting arms 64. Preferably, in order to prevent misalignment when the first connecting member 20 is pressed down, a guide member 65 is arranged at one end of the first side plate 12, and a guide surface is arranged at the upper part of the guide member 65, and a cut-in surface is arranged at the bottom of the second connecting arm 64. When the first connecting member 20 is pressed down, the cut-in surface enters from the guide surface, so that one side of the guide member 65 abuts against one side of the second connecting arm 64, and no misalignment or offset occurs.

[0064] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. An automatic bending machine, characterized in that: include: A machine platform, wherein the machine platform is provided with a platform, and the platform is a bearing body; A bending mechanism, the bending mechanism comprising a base frame assembly and a positioning module and a bending module mounted on the base frame assembly, the base frame assembly being slidably mounted on the table; The base frame assembly includes a first base plate, a first mounting seat, a second mounting seat, a first side plate, a first guide rail and a first slider, wherein the first guide rail is fixedly mounted on the top of the table, the first base plate is slidably mounted on the first guide rail through the first slider, the first mounting seat is located on the top of the first base plate, the second mounting seat is located under the first base plate, the first side plate is mounted on the top of the first base plate, and the second mounting seat passes through the table plate; The positioning module comprises a second substrate, a second guide rail, a second slider, a first mounting plate, a first connecting member, a first pressing shaft, a first driver and a second driver, wherein the second substrate is fixedly mounted on the first substrate, the first driver is fixedly mounted on the first substrate, the second driver is fixedly mounted under the table through a third mounting seat, and a push rod of the second driver is connected to the first substrate; The second guide rail is fastened and mounted on the first mounting plate, the first connecting member is fastened and connected to the first mounting plate, the first pressing shaft is mounted on one side of the first connecting member, the first connecting member is connected to the push rod of the first driver, and the first connecting member is slidably connected to the second base plate through the second sliding block; The second driver positions the first substrate, the first driver drives the first pressing shaft to press down, and the first connecting member approaches the first side plate to clamp the workpiece; The bending module includes a third substrate, a third driver and a bending jig, the bending jig is fastened on the third substrate, the third substrate is provided with a rotating arm, the rotating arm is rotatably connected to the first mounting seat, the third driver is fastened on the second mounting seat, the push rod of the third driver is connected to the third substrate, the third driver drives the third substrate to drive the bending jig to flip, and the bending jig cooperates with the first pressing shaft to bend the workpiece.

2. The automatic bending machine according to claim 1, characterized in that: It also includes a controller, the controller is mounted on the machine platform, and the first driver, the second driver and the third driver are all controlled by the controller; The two bending mechanisms are symmetrically arranged on the machine platform, and the controller controls the two bending mechanisms to bend the workpiece simultaneously.

3. The automatic bending machine according to claim 2, characterized in that: It also includes a centering mechanism, which includes a centering bracket, a fourth driver, a centering adjustment rod, a third guide rail, a third slide block, a workpiece receiving plate and a plurality of centering sensors; The centering bracket is fixedly mounted on the table, the third guide rail is fixedly mounted on the centering bracket, the centering adjustment rod is slidably mounted on the third guide rail via the third slider, the fourth driver is arranged on the centering bracket and can drive the centering adjustment rod, the workpiece receiving plate is arranged at the end of the centering adjustment rod, and the workpiece receiving plate receives the workpiece; The fourth driver and the centering sensor are both electrically connected to the controller, and the controller controls the fourth driver to work through the centering sensor. The centering sensor is installed on the workpiece receiving plate and detects whether the end face of the workpiece abuts against the clamping surface of the workpiece receiving plate.

4. The automatic bending machine according to claim 3, characterized in that: It also includes a clamping mechanism, which includes a fourth base plate, a first bracket, a fifth driver, a first connecting arm, a first pressing plate, a fourth guide rail and a fourth slider; The fourth base plate is fixedly mounted on the table plate, the first bracket passes through the table plate and is fixedly mounted on one side of the fourth base plate, the fourth guide rail is mounted on the first bracket, the first connecting arm is slidably mounted on the first bracket through the fourth slider, the fifth driver is mounted on the bottom of the first bracket, the push rod of the fifth driver is connected to the first connecting arm, and the first pressing plate is mounted on one end of the first connecting arm; The fifth driver is controlled by the controller to operate, and the fifth driver drives the first connecting arm to drive the first pressing plate to press the workpiece.

5. The automatic bending machine according to claim 4, characterized in that: The positioning module also includes a displacement sensor, which is installed on the bottom surface of the first substrate. The displacement sensor is electrically connected to the controller, and the controller controls the second driver through the displacement sensor.

6. The automatic bending machine according to claim 1, characterized in that: The bending jig includes a mold base, a fourth mounting seat and a second pressing shaft. The mold base is fixedly mounted on the third base, the fourth mounting seat is fixedly mounted on the mold base, and the second pressing shaft is rotatably mounted on the fourth mounting seat.

7. The automatic bending machine according to claim 6, characterized in that: A dovetail portion is formed at the bottom of the mold substrate, and a dovetail groove is arranged on the top of the third substrate, and the dovetail groove is installed in conjunction with the dovetail portion.

8. The automatic bending machine according to claim 7, characterized in that: The bending jig further comprises a handle, and the handle is mounted on one side of the mold base plate.

9. The automatic bending machine according to claim 1, characterized in that: The positioning module also includes a second connecting arm, and the first pressing shaft is rotatably mounted on one side of the first connecting member through the second connecting arm.

10. The automatic bending machine according to claim 9, characterized in that: A guide member is disposed at one end of the first side plate, and a side surface of the guide member abuts against a side surface of the second connecting arm; The upper portion of the guide member is provided with a guiding surface, and the bottom portion of the second connecting arm is provided with a cutting surface.

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