Automatic centering guide device

Abstract

An automatic centering guide device comprises a base and a guide mechanism, a guide adjusting mechanism is arranged on the base, and the guide mechanism is connected to the guide adjusting mechanism. The guide mechanism comprises a guide seat, a guide rail, a left guide roller set, a right guide roller set and a centering mechanism, the guide seat is installed on the guide rail, the guide rail is installed on the base, the centering mechanism is arranged on the guide seat, and the left guide roller set and the right guide roller set are both arranged on the centering mechanism. The guide adjusting mechanism adjusts the position of the guide mechanism on the base, the gear motor drives the centering lead screw to rotate, the left guide roller set and the right guide roller set are driven to move symmetrically, and the distance between the left guide roller set and the right guide roller set is made to be consistent with the width of a steel plate. According to the utility model, the requirement on equipment installation precision is reduced, the width can be conveniently, quickly and accurately adjusted, and the guiding effect is improved.

Description

Technical Field

[0001] The utility model relates to a guiding device for shearing steel plates by a swing shearing machine, belonging to the technical field of steel plate shearing guidance. Background Art

[0002] The guiding device and the swing shearing machine are two devices fixed on the foundation. It is extremely inconvenient to adjust the distance between the center line of the guiding device and the swing center of the swing shearing machine on the foundation. Moreover, after the devices are fixed on the foundation, there is almost no adjustment space. Once the relative positions of the two devices are fixed after installation, it is impossible to accurately align and adjust the center line of the guiding device and the swing center of the swing shearing machine during debugging.

[0003] The existing guiding device has only one set and a short guiding distance, resulting in a poor guiding effect on the steel plate. There will still be a deviation between the center line of the steel plate and the swing center of the swing shearing machine after leaving a certain distance. When the width of the steel plate to be sheared changes, only the distance between the two guiding wheels in the guiding device can be manually adjusted, with poor accuracy.

[0004] The guiding device of the existing technology cannot meet the use requirements of the thin plate swing shearing production line. Summary of the Invention

[0005] Aiming at the deficiencies existing in the existing guiding technology for steel plate shearing, the utility model provides an automatic centering guiding device with accurate guiding, fast and convenient operation.

[0006] The automatic centering guiding device of the utility model adopts the following technical solutions:

[0007] The guiding device includes a base and a guiding mechanism. A guiding adjustment mechanism is arranged on the base, and the guiding mechanism is connected to the guiding adjustment mechanism. The guiding mechanism includes a guiding seat, a guide rail, a left guiding roller group, a right guiding roller group and a centering mechanism. The guiding seat is installed on the guide rail, the guide rail is installed on the base, a centering mechanism is arranged on the guiding seat, and both the left guiding roller group and the right guiding roller group are arranged on the centering mechanism.

[0008] The left guiding roller group includes a left guiding roller seat and left guiding rollers. The left guiding rollers are installed on the left guiding roller seat through a mandrel, and the left guiding rollers can rotate on the mandrel. A plurality of left guiding rollers are installed on the left guiding roller seat.

[0009] The right guiding roller group includes a right guiding roller seat and right guiding rollers. The right guiding rollers are installed on the right guiding roller seat through a mandrel, and the right guiding rollers can rotate on the mandrel. A plurality of right guiding rollers are installed on the right guiding roller seat.

[0010] The centering mechanism includes a reduction motor and a centering lead screw. The reduction motor and the centering lead screw are installed on the guide seat. One end of the centering lead screw is connected to the rotating shaft of the reduction motor. One side of the centering lead screw has a left-handed thread, and the other side has a right-handed thread. The left guide roller group is connected to the left-handed thread, and the right guide roller group is connected to the right-handed thread. An encoder is provided at the other end of the centering lead screw. The reduction motor drives the centering lead screw to rotate. When the centering lead screw rotates, it drives the left guide roller group and the right guide roller group to move inward or outward simultaneously.

[0011] A supporting roller is installed on the guide seat to support the steel plate and prevent its head from sagging downward.

[0012] Guide rods are provided on both sides of the centering lead screw on the guide seat. The left guide roller group and the right guide roller group are sleeved on the guide rods.

[0013] A scale is provided on the upper part of the guide seat to indicate the width of the steel plate.

[0014] The guide adjustment mechanism includes an adjustment lead screw and an adjustment nut. The adjustment lead screw is installed on the base, and the adjustment nut is connected to the guide mechanism (specifically, the guide seat). A locking nut is provided on the adjustment lead screw. A handwheel is provided at the outer end of the adjustment lead screw. Rotating the adjustment lead screw drives the adjustment nut to move, and the guide mechanism follows the adjustment nut to move, thereby adjusting the position of the guide mechanism on the base.

[0015] A displacement sensor is provided on the base to determine the position of the guide mechanism.

[0016] The two groups of guide devices are used in cooperation to guide the steel plate over a long distance. By adjusting the position of the guide mechanism on the base through the guide adjustment mechanism, the center line of the guide mechanism is made to coincide with the center line of the entire production line. The reduction motor drives the centering lead screw to rotate. When the centering lead screw rotates, it drives the left guide roller group and the right guide roller group to move symmetrically inward or outward, making the distance between the left guide roller and the right guide roller consistent with the width of the steel plate and in contact with the steel plate. The steel plate enters between the left guide roller group and the right guide roller group and runs under the guidance of the guide rollers in the first group of guide devices, and then enters the second group of guide devices and enters the swing shearing machine under the guidance of the guide rollers in the second group of guide devices.

[0017] The utility model reduces the requirements for the installation accuracy of the equipment, can adjust the width conveniently, quickly and accurately, improves the guiding effect, reduces the influence of the distance between the center of the plate and the swing center of the shearing machine on the size of the sheared plate, and meets the use requirements of the thin plate swing shearing production line. Brief Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of the automatic centering and guiding device of the utility model.

[0019] Figure 2 is Figure 1 the left view of

[0020] Among them: 1. Encoder, 2. Left guiding roller, 3. Scale, 4. Centering lead screw, 5. Reducing motor, 6. Guide rod. 7. Supporting roller. 8. Linear guide rail, 9. Guide seat, 10. Base. 11. Displacement sensor, 12. Adjusting lead screw, 13. Handwheel, 14. Locking nut, 15. Adjusting nut, 16. Right guiding roller, 17. Left guiding roller seat, 18. Right guiding roller seat, 19. Steel plate, 20. First group of guiding devices, 21. First group of guiding devices. Specific implementation manner

[0021] In the thin plate swing shearing production line, due to the swing shearing of the shearing machine, the distance between the width center of the steel plate and the swing center of the shearing machine will have a very large impact on the shearing size, and the dimensional requirements for it are very strict. The automatic centering guiding device of the present utility model reduces the requirements for the installation accuracy of the equipment.

[0022] As Figure 1 and 2 shown, the automatic centering guiding device of the present utility model includes a base 10 and a guiding mechanism, a guiding adjustment mechanism is arranged on the base 10, and the guiding mechanism is connected to the guiding adjustment mechanism.

[0023] The guiding mechanism includes a guide seat 9, a linear guide rail 8, a left guiding roller group, a right guiding roller group and a centering mechanism. The guide seat 9 is installed on the linear guide rail 8 through a slider, and the linear guide rail 8 is installed on the base 10 to provide guidance for the overall movement of the guiding mechanism. A centering mechanism is arranged on the guide seat 9, both the left guiding roller group and the right guiding roller group are arranged on the centering mechanism, and the centering mechanism drives the left guiding roller group and the right guiding roller group to move inwards or outwards simultaneously. The left guiding roller group includes a left guiding roller seat 17 and a left guiding roller 2, and the left guiding roller 2 is vertically installed on the left guiding roller seat 17 through a bearing and a core shaft, the left guiding roller 2 can rotate on the core shaft, and multiple left guiding rollers 2 can be installed on the left guiding roller seat 17, Figure 2 three in the figure. The right guiding roller group includes a right guiding roller seat 18 and a right guiding roller 16, and the right guiding roller 16 is vertically installed on the right guiding roller seat 18 through a bearing and a core shaft, the right guiding roller 16 can rotate on the core shaft, and multiple right guiding rollers 16 can be installed on the right guiding roller seat 18. Both sides of the steel plate 19 are respectively in contact with the left guiding roller 2 and the right guiding roller 16 to play a guiding role.

[0024] The centering mechanism includes a reduction motor 5 and a centering lead screw 4. The reduction motor 5 and the centering lead screw 4 are installed on the guide seat 9. One end of the centering lead screw 4 is connected to the rotating shaft of the reduction motor 5, and an encoder 1 is provided at the other end. One side of the centering lead screw 4 has a left-handed thread, and the other side has a right-handed thread, with the same lead. The left-handed thread cooperates with the left guide roller seat 17, and the right-handed thread cooperates with the right guide roller seat 18. The reduction motor 5 drives the centering lead screw 4 to rotate. When the centering lead screw 4 rotates, it drives the left guide roller seat 17 and the left guide roller 2 thereon and the right guide roller seat 18 and the right guide roller 16 thereon to move symmetrically inwards or outwards, keeping the center line formed by the guide rollers on both sides unchanged. The encoder 1 determines the position of the guide rollers by calculating the number of rotation turns and the lead of the centering lead screw 4.

[0025] A horizontally arranged supporting roller 7 is also installed on the guide seat 9 to facilitate the passage of the steel plate 15 thereon and prevent the head of the steel plate 15 from sinking downwards.

[0026] Guide rods 6 are arranged on both sides of the centering lead screw 4 on the guide seat 9. The left guide roller seat 17 and the right guide roller seat 18 are threadedly connected to the centering lead screw 4 and are also sleeved on the guide rods 6 to provide guidance for the movement of the guide roller 2.

[0027] A scale 3 is provided at the upper part of the guide seat 9 to indicate the width of the steel plate 15.

[0028] The guide adjustment mechanism is used to adjust the distance between the center line of the guide mechanism and the center line of the entire production line (swing shearing machine). A lead screw-nut pair moving mechanism is adopted, see Figure 1 , including an adjustment lead screw 12 and an adjustment nut 15. The adjustment lead screw 12 is installed on the base 10 and only rotates without moving. A locking nut 14 is provided on the adjustment lead screw 12. The adjustment nut 15 is connected to the lower part of the guide seat 9 in the guide mechanism. A handwheel 13 is provided at the outer end of the adjustment lead screw 12. By rotating the handwheel 13, the adjustment lead screw 12 rotates, driving the adjustment nut 15 to move, and the guide seat 9 moves along with the adjustment nut 15 on the linear guide 8, so that the entire guide mechanism moves. After adjustment, the lead screw 12 is locked by the locking nut 14 to prevent it from rotating, so as to ensure that the upper guide mechanism does not shift during use and ensure that the center line of the passing steel plate 19 does not change.

[0029] A displacement sensor 11 is provided below the guide seat 9 on the base 10 to measure the moving distance of the upper guide mechanism to determine its position, and digital display is adopted, and any change is directly displayed.

[0030] The operation process of the above automatic centering and guiding device is described as follows.

[0031] See Figure 2 , the first group of guiding devices 20 and the first group of guiding devices 21 are used in cooperation to guide the steel plate 19 over a long distance.

[0032] After the equipment (two sets of guiding devices and a swing shearing machine) is installed, the adjusting lead screw 12 is rotated by the hand wheel 13, so that the adjusting nut 15 drives the guide seat 9 and the entire guiding mechanism thereon to move, so as to adjust the distance between the center line of the guiding mechanism and the center line of the whole production line. After the adjustment is completed, the adjusting lead screw 12 is fixed by the locking nut 14.

[0033] The reduction motor 5 drives the centering lead screw 4 to rotate. When the centering lead screw 4 rotates, it drives the left guide roller 2 on the left guide roller seat 17 and the right guide roller 16 on the right guide roller seat 18 to move symmetrically inwards or outwards, so that the distance between the left guide roller 2 and the right guide roller 16 is consistent with the width of the steel plate 19 and contacts the steel plate 19. Through the measurement of the encoder 1, the positions of the left guide roller 2 and the right guide roller 16 are accurate.

[0034] The steel plate 19 is lifted by the supporting roller 7 in the first set of guiding devices and enters between its left guide roller 2 and right guide roller 16. It runs under the guidance of the left guide roller 2 and right guide roller 16 in the first set of guiding devices 20, enters the second set of guiding devices 21, and enters the swing shearing machine under the guidance of the left guide roller and right guide roller in the second set of guiding devices 21.

[0035] The two sets of guiding devices are used in cooperation. The guiding effect on the steel plate 19 is very good through long-distance guiding. After leaving a certain distance, the center line of the steel plate 19 still coincides with the swing center of the swing shearing machine, ensuring the shearing size of the sheet material. As long as the width parameter of the steel plate 19 is input at the control end, the guiding rollers on both sides in the two sets of guiding devices can automatically run to the required positions.

[0036] The utility model reduces the requirement for the installation accuracy of the equipment, can adjust the width conveniently, quickly and accurately, improves the guiding effect, reduces the influence of the distance between the center of the sheet material and the swing center of the shearing machine on the size of the sheared sheet material, and meets the use requirements of the thin plate swing shearing production line.

Claims

1. An automatic centering guide device, characterized in that: It includes a base and a guide mechanism, the base is provided with a guide adjustment mechanism, and the guide mechanism is connected to the guide adjustment mechanism; the guide mechanism includes a guide seat, a guide rail, a left guide roller group, a right guide roller group and a centering mechanism, the guide seat is installed on the guide rail, the guide rail is installed on the base, the guide seat is provided with a centering mechanism, and the left guide roller group and the right guide roller group are both arranged on the centering mechanism.

2. The automatic centering guide device according to claim 1 is characterized in that: The left guide roller group comprises a left guide roller seat and a left guide roller, and the left guide roller is installed on the left guide roller seat through a core shaft.

3. The automatic centering guide device according to claim 1 is characterized in that: The right guide roller group comprises a right guide roller seat and a right guide roller, and the right guide roller is installed on the right guide roller seat through a core shaft.

4. The automatic centering guide device according to claim 1 is characterized in that: The centering mechanism includes a reduction motor and a centering screw, which are installed on a guide seat. One end of the centering screw is connected to the rotating shaft of the reduction motor. One side of the centering screw is a left-handed thread and the other side is a right-handed thread. The left guide roller group is connected to the left-handed thread, and the right guide roller group is connected to the right-handed thread.

5. The automatic centering guide device according to claim 4 is characterized in that: An encoder is arranged at the other end of the centering screw.

6. The automatic centering guide device according to claim 1 is characterized in that: A supporting roller is installed on the guide seat.

7. The automatic centering guide device according to claim 1 is characterized in that: The guide seat is provided with guide rods on both sides of the centering screw, and the left guide roller group and the right guide roller group are sleeved on the guide rods.

8. The automatic centering guide device according to claim 1 is characterized in that: A scale is arranged on the upper part of the guide seat.

9. The automatic centering guide device according to claim 1, characterized in that: The guide adjustment mechanism comprises an adjustment screw and an adjustment nut. The adjustment screw is installed on the base, and the adjustment nut is connected to the guide mechanism.

10. The automatic centering guide device according to claim 1, characterized in that: A displacement sensor is arranged on the base.

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