Front positioning device of bending machine

Abstract

The utility model provides a bending machine front positioning device which comprises a base, the lower surface of the base is provided with two mounting plates which are distributed in a bilateral symmetry mode, the upper surface of the base is provided with two guide sliding grooves which are distributed in a bilateral symmetry mode, and two sliding columns which are distributed in a bilateral symmetry mode are fixedly welded in the base. A sliding frame is slidably arranged between the sliding column and the guide sliding groove, a first adjusting lead screw is rotationally arranged in the middle of the interior of the base and is in threaded connection with the sliding frame, a first motor is arranged on the rear side of the base, and an output shaft of the first motor and the first adjusting lead screw are fixed through a coupler; sliding grooves are symmetrically formed in the front side and the rear side of the movable base, and a sliding base, a positioning module and an electric control module are arranged between the two sliding grooves in a sliding mode. The front positioning device of the bending machine can adapt to bending machines of different models to quickly and accurately position the bending machines, and is high in adaptability and convenient to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of bending machines, and particularly relates to a front positioning device for a bending machine. Background Art

[0002] The main function of a bending machine is to bend a metal plate at a predetermined angle and shape by applying sufficient pressure to form various complex or simple three-dimensional structures. The existing front positioning device of a bending machine drives the front and rear positions and the left and right positions of the positioning frame through a driving mechanism to make the positioning frame adapt to the plate to be bent to position it. However, in actual use, due to the different specifications and sizes of bending machines of different models, the positioning device cannot adapt well to bending machines of different sizes and has low adaptability.

[0003] For example, the invention with publication number CN116689634A discloses a front positioning device for a bending machine, which is installed on one side of the workbench of the bending machine body, and includes a mounting frame and a spacing adjustment mechanism arranged on the mounting frame for adjusting the distance between the mounting frame and the bending machine body, and also includes a slide seat arranged on the top of the mounting frame, and a positioning plate for positioning the position of the workpiece is arranged on the slide seat, and a mounting and disassembly mechanism for detachably connecting the positioning plate and the slide seat is also arranged on the slide seat. In the technical solution of this patent, the horizontal position of the positioning plate is adjusted by driving the positioning plate to move in the left and right and front and back directions, so that the positioning plate can position the plate to be bent according to the working requirements, but in actual use, due to the different heights of the lower molds of bending machines of different models and sizes, the positioning plate cannot adapt well to bending machines of different sizes, and has low adaptability. Utility Model Content

[0004] In view of this, the utility model aims at the deficiencies of the prior art and provides a front positioning device for a bending machine, which can adapt to different types of bending machines for fast and accurate positioning, has strong adaptability and is easy to use.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a front positioning device for a bending machine, including a base, a lower surface of the base is provided with two mounting plates symmetrically distributed on the left and right, an upper surface of the base is provided with two guide slide grooves symmetrically distributed on the left and right, two sliding columns symmetrically distributed on the left and right are welded and fixed inside the base, a sliding frame is slidably arranged between the sliding columns and the guide slide grooves, an adjusting screw rod 1 is rotatably arranged in the middle part of the inner part of the base, the adjusting screw rod 1 is threadedly connected to the sliding frame, a motor 1 is arranged on the rear side of the base, the output shaft of the motor 1 is fixed to the adjusting screw rod 1 by a coupling, a moving seat is arranged on the top of the sliding frame, symmetrical sliding grooves are provided on the front and rear sides of the moving seat, a sliding seat is slidably arranged between the two sliding grooves, and a sliding seat is arranged on the sliding seat A positioning module for positioning is also provided, and an electric control module for driving the sliding seat to move is also provided on the moving seat; the electric control module includes an adjusting screw rod 2 rotatably arranged on the upper side of the inner part of the moving seat, the adjusting screw rod 2 is threadedly connected to the sliding seat, and two left and right symmetrically distributed supports 1 are welded and fixed to the inner bottom end of the moving seat, and a rotating rod is rotatably arranged between the side of the support 1 away from the vertical center of the moving seat and the adjacent inner wall of the moving seat, and synchronous pulleys are fixedly sleeved on the end of the two rotating rods away from the vertical center of the moving seat and the left and right ends of the adjusting screw rod 2, and transmission synchronous belts are respectively transmitted between the vertically adjacent synchronous pulleys, and a double-axis motor is arranged in the middle part of the inner part of the moving seat, and the output shafts of the double-axis motor are respectively fixed to the adjacent rotating rods through couplings.

[0006] As a further improvement of the present invention, the positioning module includes two installation boxes that are welded and fixed on the upper surface of the sliding seat, and two rotating shafts that are symmetrically distributed front and back are rotatably arranged between the two installation boxes. Two connecting rods that are symmetrically distributed front and back are fixedly sleeved on the outer arc surfaces of the rotating shafts, and the ends of the four connecting rods away from the rotating shafts are rotatably connected to the movable seat, a distance sensor is provided in the middle of the front side of the movable seat, a positioning frame is provided on the upper surface of the movable seat, and an electric drive unit for driving the rotating shaft to rotate is also provided on the installation box; the electric drive unit includes a worm gear fixedly sleeved on the left and right ends of the rotating shaft, and two support 2 that are symmetrically distributed front and back are welded and fixed to the inner bottom end of the installation box, and a worm is rotatably arranged between the sides of the support 2 away from the vertical center of the installation box and the adjacent inner walls of the installation box, and the worms are respectively meshed with the vertically adjacent worm wheels, and a linkage rod is fixedly provided between the two worms located inside the same installation box through a coupling, and a drive assembly for rotating the rotating shaft and worm is also provided on the installation box.

[0007] As a further improvement of the utility model, the driving assembly includes a motor 2 arranged on the rear side of the mounting box, and the output shafts of the motor 2 are respectively fixed to adjacent worm gears through couplings; a controller is provided at the inner bottom end of the base, and the motor 1, the dual-axis motor, the distance sensor and the motor 2 are all electrically connected to the controller.

[0008] As a further improvement of the utility model, a rubber sleeve is provided at the edge of the positioning frame.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0010] Firstly, the controller controls the operation of the two motors so that the output shaft of the motor drives the worm connected thereto to rotate. Since two parallelograms can be formed between the connecting rods on the front and rear sides, the rotating shafts on the front and rear sides and the movable seat, the movable seat is always perpendicular to the ground during the height adjustment of the movable seat. The height of the movable seat can be adjusted quickly and accurately to adapt to bending machines of different models and specifications.

[0011] Secondly, the output shaft of motor one drives the adjusting screw one connected to it to rotate, and the threaded relationship between the adjusting screw one and the sliding frame drives the sliding frame to slide between the sliding column and the guide groove, so that the moving seat drives the positioning frame to move quickly and accurately to the appropriate position.

[0012] Thirdly, the output shafts of the dual-axis motors respectively drive the rotating rods connected thereto to rotate, and the transmission synchronous belts arranged between the vertically adjacent synchronous pulleys drive the adjusting screw rod 2 to rotate, so that the sliding seat drives the positioning frame to quickly and accurately adjust its lateral position, which can adapt to different types of bending machines for fast and accurate positioning, has strong adaptability and is easy to use.

[0013] Fourthly, the rubber sleeve can effectively avoid direct contact between the positioning frame and the sheet material, and can effectively avoid scratches between the positioning frame and the sheet material during the positioning of the sheet material, thereby effectively increasing the service life of the positioning frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the internal cross-sectional structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the enlarged structure of point A of the utility model;

[0018] Figure 4 It is a schematic diagram of the internal plane structure of the utility model.

[0019] In the figure: 101, base; 102, mounting plate; 103, guide slide; 104, slide column; 105, sliding frame; 106, movable seat; 107, sliding groove; 108, sliding seat; 109, adjusting screw rod 1; 110, motor 1; 111, adjusting screw rod 2; 112, rotating rod; 113, synchronous pulley; 114, transmission synchronous belt; 115, support 1; 116, double-axis motor; 201, installation box; 202, rotating shaft; 203, connecting rod; 204, movable seat; 205, distance sensor; 206, positioning frame; 207, rubber sleeve; 208, support 2; 209, worm; 210, worm wheel; 211, linkage rod; 212, motor 2; 301, controller. DETAILED DESCRIPTION

[0020] In order to better understand the present invention, the content of the present invention is further clearly described below in conjunction with the embodiments, but the protection content of the present invention is not limited to the following embodiments. In the following description, a large number of specific details are given in order to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details.

[0021] like Figure 1 , 2 4, including a base 101, the lower surface of the base 101 is provided with two left-right symmetrically distributed mounting plates 102, the upper surface of the base 101 is provided with two left-right symmetrically distributed guide grooves 103, the interior of the base 101 is welded and fixed with two left-right symmetrically distributed slide posts 104, a slide frame 105 is slidably provided between the slide post 104 and the guide groove 103, an adjusting screw rod 109 is rotatably provided in the middle of the interior of the base 101, and the adjusting screw rod 109 is threaded with the slide frame 105 A motor 110 is provided on the rear side of the base 101, and the output shaft of the motor 110 is fixed to the adjusting screw 109 by a coupling. A moving seat 106 is provided on the top of the sliding frame 105, and symmetrical sliding grooves 107 are provided on the front and rear sides of the moving seat 106. A sliding seat 108 is slidably provided between the two sliding grooves 107, and a positioning module for positioning is also provided on the sliding seat 108. The moving seat 106 is also provided with an electric control module for driving the sliding seat 108 to move.

[0022] like Figure 1 , 2As shown in , 4, the electronic control module includes an adjusting screw rod 111 rotatably arranged on the upper side of the inner part of the moving seat 106, the adjusting screw rod 111 is threadedly connected to the sliding seat 108, and two left-right symmetrically distributed supports 115 are welded and fixed to the inner bottom end of the moving seat 106, and a rotating rod 112 is rotatably arranged between the support 115 and the adjacent inner wall of the moving seat 106 on the side away from the vertical center of the moving seat 106, and the two rotating rods 112 are fixedly sleeved with synchronous pulleys 113 on one end away from the vertical center of the moving seat 106 and the left and right ends of the adjusting screw rod 111, and transmission synchronous belts 114 are respectively transmitted between the vertically adjacent synchronous pulleys 113, and a dual-axis motor 116 is arranged in the middle part of the inner part of the moving seat 106, and the output shafts of the dual-axis motor 116 are respectively fixed to the adjacent rotating rods 112 through couplings.

[0023] like Figure 2 , 3 As shown in , 4, the positioning module includes two installation boxes 201 that are welded and fixed on the upper surface of the sliding seat 108 and are symmetrically distributed on the left and right. Two rotating shafts 202 that are symmetrically distributed in front and back are rotatably arranged between the two installation boxes 201. The outer arc surface of the rotating shaft 202 is fixedly sleeved with two connecting rods 203 that are symmetrically distributed on the left and right. The ends of the four connecting rods 203 that are away from the rotating shaft 202 are rotatably connected to the movable seat 204. A distance sensor 205 is arranged in the middle of the front side of the movable seat 204. A positioning frame 206 is arranged on the upper surface of the movable seat 204. An electric drive unit for driving the rotating shaft 202 to rotate is also arranged on the installation box 201; the electric drive unit includes a worm gear 210 that is fixedly sleeved on the left and right ends of the rotating shaft 202. Two support 208 symmetrically distributed front and back are welded and fixed to the inner bottom of the installation box 201. A worm 209 is rotatably arranged between the inner walls of the adjacent installation box 201 on one side of the support 208 away from the vertical center of the installation box 201. The worm 209 is respectively meshed and connected with the vertically adjacent worm wheels 210. A linkage rod 211 is fixedly arranged between the two worms 209 located inside the same installation box 201 through a coupling. A driving assembly for rotating the worm 209 of the rotating shaft 202 is also arranged on the installation box 201; the driving assembly includes a motor 212 arranged on the rear side of the installation box 201, and the output shafts of the motor 212 are respectively fixed to the adjacent worms 209 through couplings.

[0024] like Figure 2 As shown, a controller 301 is disposed at the inner bottom end of the base 101 , and the motor 1 110 , the dual-axis motor 116 , the distance sensor 205 and the motor 2 212 are all electrically connected to the controller 301 .

[0025] When the plate needs to be positioned during the use of the bending machine, the personnel connect the controller 301 to the external bending machine control system, and the controller 301 regulates the operation of the two motors 212, so that the output shaft of the motor 212 drives the worm 209 connected thereto to rotate, and then the four worms 209 are rotated synchronously through the linkage rod 211 arranged between the worms 209, so that the worm 209 drives the worm wheel 210 meshing with it to rotate, so that the rotating shafts 202 on the front and rear sides rotate, so that the rotating shafts 202 on the front and rear sides rotate. 02 drives the connecting rods 203 on the left and right sides of the outer arc surface to rotate, so that the four connecting rods 203 drive the height adjustment of the movable seat 204, so that the movable seat 204 can quickly adapt to the lower mold of the bending machine of different models and specifications. Since the connecting rods 203 on the front and rear sides, the rotating shafts 202 on the front and rear sides and the movable seat 204 can form two parallelograms, the movable seat 204 is always perpendicular to the ground during the height adjustment of the movable seat 204, and the height of the movable seat 204 can be quickly and accurately adjusted to adapt to different The controller 301 regulates the operation of the motor 110, the dual-axis motor 116 and the distance sensor 205, so that the distance sensor 205 measures the distance between the positioning frame 206 and the working table of the bending machine, and then the output shaft of the motor 110 drives the adjusting screw 109 connected thereto to rotate, and the sliding frame 105 is driven to slide between the sliding column 104 and the guide groove 103 by adjusting the threaded relationship between the screw 109 and the sliding frame 105, so that the moving seat 106 drives the positioning frame 206 to move quickly and accurately. The adjusting screw rod 111 is driven by the output shaft of the double-axis motor 116 to rotate to a suitable position, and the output shaft of the double-axis motor 116 drives the rotating rod 112 connected thereto to rotate, and the transmission synchronous belt 114 arranged between the vertically adjacent synchronous pulleys 113 drives the adjusting screw rod 111 to rotate, so that the adjusting screw rod 111 drives the sliding seat 108 to move on the moving seat 106, so that the sliding seat 108 drives the positioning frame 206 to adjust its lateral position quickly and accurately, which can adapt to different types of bending machines for fast and accurate positioning, has strong adaptability and is easy to use.

[0026] According to another embodiment of the present invention, Figure 1 , 2 As shown in FIGS. 3 and 4 , a rubber sleeve 207 is provided at the edge of the positioning frame 206. In the process of positioning the sheet material, the rubber sleeve 207 can effectively avoid direct contact between the positioning frame 206 and the sheet material, thereby effectively increasing the service life of the positioning frame 206.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A front positioning device for a bending machine, comprising a base (101), wherein the lower surface of the base (101) is provided with two mounting plates (102) symmetrically distributed left and right, characterized in that: The upper surface of the base (101) is provided with two guide slide grooves (103) which are symmetrically distributed on the left and right sides. Two slide pillars (104) which are symmetrically distributed on the left and right sides are welded and fixed inside the base (101). A sliding frame (105) is slidably arranged between the slide pillars (104) and the guide slide grooves (103). An adjusting screw rod (109) is rotatably arranged in the middle part of the base (101). The adjusting screw rod (109) is threadedly connected to the sliding frame (105). A motor (110) is arranged at the rear side of the base (101). The output shaft of the motor 1 (110) is fixed to the adjusting screw rod 1 (109) by a coupling, a moving seat (106) is arranged at the top of the sliding frame (105), and symmetrical sliding grooves (107) are opened on the front and rear sides of the moving seat (106), and a sliding seat (108) is slidably arranged between the two sliding grooves (107), and a positioning module for positioning is also arranged on the sliding seat (108), and an electric control module for driving the sliding seat (108) to move is also arranged on the moving seat (106).

2. The front positioning device for a bending machine according to claim 1, characterized in that: The electric control module comprises an adjusting screw rod 2 (111) rotatably arranged on the upper side of the inside of the moving seat (106), the adjusting screw rod 2 (111) being threadedly connected to the sliding seat (108), two left-right symmetrically distributed support rods 1 (115) being welded and fixed to the inner bottom end of the moving seat (106), a rotating rod (112) being rotatably arranged between the side of the support rod 1 (115) away from the vertical center of the moving seat (106) and the adjacent inner wall of the moving seat (106), the ends of the two rotating rods (112) away from the vertical center of the moving seat (106) and the left and right ends of the adjusting screw rod 2 (111) are fixedly sleeved with synchronous pulleys (113), and transmission synchronous belts (114) are respectively arranged for transmission between the vertically adjacent synchronous pulleys (113), a dual-axis motor (116) is arranged in the middle of the inside of the moving seat (106), and the output shafts of the dual-axis motor (116) are respectively fixed to the adjacent rotating rods (112) through couplings.

3. The front positioning device for a bending machine according to claim 2, characterized in that: The positioning module comprises two installation boxes (201) which are symmetrically distributed on the left and right and are welded and fixed on the upper surface of the sliding seat (108); two rotating shafts (202) which are symmetrically distributed front and back are rotatably arranged between the two installation boxes (201); two connecting rods (203) which are symmetrically distributed on the left and right are fixedly sleeved on the outer arc surface of the rotating shaft (202); one end of the four connecting rods (203) which are away from the rotating shaft (202) are rotatably connected to the movable seat (204); a distance sensor (205) is arranged in the middle of the front side of the movable seat (204); a positioning frame (206) is arranged on the upper surface of the movable seat (204); and an electric drive unit for driving the rotating shaft (202) to rotate is also arranged on the installation box (201).

4. The front positioning device for a bending machine according to claim 3, characterized in that: The electric drive unit comprises a worm gear (210) fixedly sleeved on the left and right ends of the rotating shaft (202); two support 2 (208) symmetrically distributed front and back are welded and fixed to the inner bottom end of the installation box (201); a worm (209) is rotatably arranged between the sides of the support 2 (208) away from the vertical center of the installation box (201) and the inner walls of the adjacent installation boxes (201); the worm (209) is respectively meshed and connected with the vertically adjacent worm gears (210); a linkage rod (211) is fixedly arranged between the two worm gears (209) located inside the same installation box (201) via a coupling; and a driving assembly for rotating the rotating shaft (202) and the worm (209) is also arranged on the installation box (201).

5. The front positioning device for a bending machine according to claim 4, characterized in that: The driving assembly comprises a second motor (212) arranged at the rear side of the installation box (201), and the output shafts of the second motor (212) are respectively fixed to adjacent worm gears (209) via couplings.

6. The front positioning device for a bending machine according to claim 5, characterized in that: A controller (301) is disposed at the inner bottom end of the base (101), and the motor 1 (110), the dual-axis motor (116), the distance sensor (205) and the motor 2 (212) are all electrically connected to the controller (301).

7. The front positioning device for a bending machine according to claim 3, characterized in that: A rubber sleeve (207) is provided at the edge of the positioning frame (206).

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