CN104810756A - Power transmission cable bending device control system - Google Patents

Abstract

A power transmission cable bending device control system comprises a DSP controller, a motor drive circuit and a bending device. The bending device comprises a frame (9) and left and right slide forming dies which are arranged transversely; the middle of the upper and lower edges of the frame (9) are provided with an upper guide roller pair (8) and a lower guide roller pair (7), and a cable (1) is allowed to penetrate the spacing between two rollers of the upper guide roller pair (8) and the spacing between two rollers of the lower guide roller pair (7).

Description

A control system for bending equipment of cables for power transmission

technical field

The invention relates to the construction treatment of cables for power transmission, in particular to a control system for bending equipment of cables for power transmission.

Background technique

In the process of construction and application of power transmission cables, it is often necessary to bend the wiring head to adapt to the shape of the specific fixed part of the power equipment, so as to securely connect the cables. Sometimes, the requirements for this shape are more complex, and the shape accuracy is higher. Therefore, a power-controlled forming device is needed to quickly and accurately bend and shape the cable head.

Contents of the invention

The object of the present invention is to provide a bending equipment control system for electric power transmission cables, which can satisfy the above-mentioned requirements.

According to the present invention, a bending equipment control system for electric power transmission cables includes a DSP controller, a motor drive circuit, and a bending equipment; An upper pair of guide rollers and a pair of lower guide rollers are respectively provided at the middle positions of the upper edge and the lower edge of the frame, the distance between the two rollers of the upper pair of guide rollers and the distance between the two rollers of the lower pair of guide rollers. The distance between the rollers is aligned with each other for cables to pass through. A first screw rod extending in the left and right direction is arranged on the upper part of the frame, and the right end of the first screw rod is power-coupled with the first drive motor. The lower part is provided with a second screw rod extending left and right, the left end of the second screw rod is power-coupled with the second drive motor, the DSP controller is connected with the first drive motor and the second drive motor through a motor drive circuit, To control the rotation of the first driving motor and the second driving motor; wherein, the upper part of the left sliding forming die is provided with a left light hole, the lower part is provided with a left screw hole, and the upper part of the right sliding forming die A right screw hole is provided, and a right light hole is provided at the lower part, wherein the first screw rod is slidably matched with the left light hole, threaded with the right screw hole, and the second screw is threaded with the left screw hole, Sliding fit with said right light hole.

According to another aspect of the present invention, a method for operating a control system of a bending equipment for a power transmission cable includes the following steps:

First, pass the head of the cable through the space between the upper pair of guide rollers and the space between the lower pair of guide rollers, and the DSP controller controls the first drive motor and the second drive motor through the motor drive circuit Operate so that the left sliding forming die and the right sliding forming die move toward each other to clamp the cable;

Then, the DSP controller controls the operation of the first driving motor and the second driving motor through the motor drive circuit so that the left sliding forming mold and the right sliding forming mold move towards the same direction together, and the upper guiding roller pair and the lower sliding forming mold move in the same direction. The head of said cable is bent into shape with the cooperation of the pair of guide rollers;

Finally, the DSP controller controls the operation of the first driving motor and the second driving motor through the motor driving circuit so that the left sliding forming die and the right sliding forming die move away from each other to loosen the cables.

Through the present invention, due to the use of two slidable forming dies, which can slide in two directions left and right, the head of the cable can be processed with multiple openings facing different U shapes, so as to meet the requirements of multiple fixation of the cable. It is also possible to process a plurality of openings facing the same U-shape, or a combination thereof. Moreover, by combining each forming die with two screw thread fits and sliding fits, the tendency of the forming die to rotate can be resisted, and it can be used as a screw drive for another forming die at the same time, thus saving equipment space and reducing costs. Since each forming die is controlled by a separate screw, it can perform clamping operation, bending operation, and loosening operation. Therefore, the above three operations are realized with only two screws and no guide rods, maximizing The equipment structure is simplified under the condition of ensuring the use requirements. Moreover, through the adjustable guide rollers, it can meet the bending of cables with different diameters, and can ensure the shape accuracy of its U-shaped bent horizontal legs, avoiding an inclined shape. This mode of bending enables the exact spot where it needs to be bent, avoiding wasted cables.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the device of the present invention, wherein the cable is inserted and has not yet been clamped and bent;

Fig. 2 is a schematic diagram of the device in Fig. 1 in a state where two forming dies move to the left to bend;

Fig. 3 is a schematic diagram of the adjustment structure of the guide roller;

Fig. 4 is a block diagram of the control system of the present invention.

Detailed ways

The present invention will be described in detail below in conjunction with FIGS. 1-4 .

According to an embodiment, a control system for bending equipment of a cable for power transmission in the present invention includes a DSP controller, a motor drive circuit, and a bending equipment; the bending equipment includes a frame 9 and a left sliding forming die and a right sliding Forming dies, the two forming dies are cylindrical, which can be driven to slide on the frame, and upper guide roller pairs 8 and lower guide rollers are respectively provided at the middle positions of the upper edge and the lower edge of the frame 9. The pair of rollers 7, the spacing between the two rollers of the upper guiding roller pair 8 and the spacing between the two rollers of the lower guiding roller pair 7 are aligned with each other for the cables 1 to pass through. The top of frame 9 is provided with the first screw rod 93 that extends left and right direction, and the right end of first screw rod 93 is connected with the power of first driving motor 91, and the bottom of described frame 9 is provided with the second screw rod 94 that extends left and right direction, the second The left end of two screw rods 94 is power-connected with the second driving motor 92, and the DSP controller is connected with the first driving motor 91 and the second driving motor 92 through a motor driving circuit, so as to control the first driving motor 91 and the rotation of the second driving motor 92; wherein, the upper part of the left sliding forming die is provided with a left optical hole 932, the lower part is provided with a left screw hole 941, and the upper part of the right sliding forming die is provided with a right screw hole 931, the lower part is provided with a right light hole 942, wherein, the first screw rod 93 is slidably matched with the left light hole 932, threaded with the right screw hole 931, and the second screw rod 94 is threaded with the left screw hole 941 Fitting, slidingly fitting with the right optical hole 942 .

Beneficially, wherein, the pair of upper guide rollers 8 cooperates with the first adjustment chute 80 extending up and down in the frame 9 , and the pair of lower guide rollers 7 cooperates with the upper and lower sides of the frame 9 . The second adjustment slide groove 70 extending in the direction of the cable 1 can be adjusted up and down according to the diameter of the cable 1 .

According to an embodiment, a method for operating a control system of a bending device for a cable for power transmission includes the following steps:

First, pass the head of the cable 1 through the space between the upper pair of guide rollers 8 and the space between the lower pair of guide rollers 7, and the DSP controller controls the first drive motor 91 and the first drive motor 91 through the motor drive circuit. The second driving motor 92 runs so that the left sliding forming die and the right sliding forming die move toward each other to clamp the cable 1;

Then, the DSP controller controls the operation of the first driving motor 91 and the second driving motor 92 through the motor drive circuit so that the left sliding forming mold and the right sliding forming mold move in the same direction together, and guide the pair of rollers on the upper 8 and under the cooperation of the pair of lower guide rollers 7, the head of the cable 1 is bent into shape;

Finally, the DSP controller controls the operation of the first drive motor 91 and the second drive motor 92 through the motor drive circuit so that the left sliding forming die and the right sliding forming die move away from each other to loosen the cable 1 .

When it is necessary to process multiple bending parts, after loosening the above-mentioned forming die, insert the part of the cable to be processed accurately between the roller spacing of the two pairs of guide rollers, and use the forming die to clamp again to perform bending According to the exact position of the U-shaped bending opening, the first driving motor and the second driving motor are operated, so that the two forming dies slide together to the left or right, and finally process multiple U-shaped bendings of required shapes .

Claims (3)

1. A bending equipment control system for a cable for power transmission, comprising a DSP controller, a motor drive circuit and a bending equipment; the bending equipment includes a frame (9) and a left sliding forming die and a right sliding forming die arranged left and right, An upper pair of guide rollers (8) and a lower pair of guide rollers (7) are respectively arranged at the middle positions of the upper edge and the lower edge of the frame (9), and the two rollers of the upper guide roller pair (8) The distance between them and the distance between the two rollers of the lower guide roller pair (7) are aligned with each other for the cable (1) to pass through, and the upper part of the frame (9) is provided with a left-right direction extending The first screw (93), the right end of the first screw (93) is power-connected with the first driving motor (91), and the second screw (94) extending in the left and right direction is arranged on the lower part of the frame (9). The left end of the two screws (94) is power-connected with the second drive motor (92), and the DSP controller is connected with the first drive motor (91) and the second drive motor (92) through a motor drive circuit, and the to control the rotation of the first driving motor (91) and the second driving motor (92); wherein, the upper part of the left sliding forming mold is provided with a left optical hole (932), and the lower part is provided with a left screw hole ( 941), the upper part of the right sliding forming mold is provided with a right screw hole (931), and the lower part is provided with a right light hole (942), wherein the first screw rod (93) is slidingly fitted with the left light hole (932), Threaded with the right screw hole (931), the second screw rod (94) is threaded with the left screw hole (941), and slidably fitted with the right light hole (942). 2. The bending equipment control system for electric power transmission cables according to claim 1, wherein the pair of upper guide rollers (8) and the first adjustment chute extending in the vertical direction in the frame (9) (80), the pair of lower guide rollers (7) cooperates with the second adjustment chute (70) extending up and down in the frame (9), so that it can be adjusted according to the diameter of the cable (1). Adjust up and down. 3. A method of operating the bending equipment control system of the electric power transmission cable as claimed in claim 1 or 2, comprising the steps of: First, pass the head of the cable (1) through the space between the upper pair of guide rollers (8) and the space between the lower pair of guide rollers (7), and the DSP controller controls the The first driving motor (91) and the second driving motor (92) operate, so that the left sliding forming die and the right sliding forming die move toward each other to clamp the cable (1); Then, the DSP controller controls the operation of the first driving motor (91) and the second driving motor (92) through the motor drive circuit so that the left sliding forming mold and the right sliding forming mold move towards the same direction together, and on the above Under the cooperation of the pair of guide rollers (8) and the pair of lower guide rollers (7), the head of the cable (1) is bent into shape; Finally, the DSP controller controls the operation of the first drive motor (91) and the second drive motor (92) through the motor drive circuit so that the left sliding forming die and the right sliding forming die move away from each other to loosen the cable ( 1).