Full-automatic handheld secondary wiring machine

Abstract

The invention relates to the technical field of wiring machines, in particular to a full-automatic handheld secondary wiring machine which comprises a main frame body and further comprises a wire pressing support which is detachably connected with the main frame body, and wire pressing equipment used for applying different pressure to a cable is further arranged on the wire pressing support; wherein the main frame body is also provided with a reciprocating driving assembly for driving the cable pressing equipment to carry out bending operation on a cable; the distinguishing detector is fixedly arranged on the main frame body and is detachably connected with the wire pressing equipment on the wire pressing bracket; the automatic control system is located on the main frame body, and the automatic control system is further electrically connected with the distinguishing detector and the reciprocating driving assembly. According to the full-automatic handheld secondary wiring machine, cables under different types of pressure applying conditions can be accurately bent according to changes of bending factors, and the bending quality and the working efficiency are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of wiring machines, and in particular, to a fully automatic handheld secondary wiring machine. Background Art

[0002] Secondary wiring in electric power is an essential operation link in scenarios such as substations and distribution cabinets, mainly used for connecting the secondary side cables of equipment such as current transformers and voltage transformers. Traditional handheld wiring machines play an important role in operations such as bending cables and fixing terminals, but the existing technologies generally have problems such as single function and low efficiency. According to statistics, the annual secondary wiring operation volume in the domestic electric power industry exceeds 5 million times, and about 60% of them still rely on semi-automatic or manual tools to complete, resulting in low construction efficiency and poor consistency. In recent years, with the advancement of the construction of smart grids, the requirements for the accuracy and efficiency of secondary wiring have been significantly improved. For example, some new types of transformers require the bending angle error of cables to be controlled within ±1°, and the wire diameter range of 1.5 - 10 mm² needs to be compatible.

[0003] For existing fully automatic handheld secondary wiring machines, a single device cannot adapt to the bending requirements of different wire diameters, multiple cables, and complex angles. Frequent replacement of molds leads to operation interruption, and the efficiency loss is as high as 40%; moreover, the control accuracy is low, and the bending process depends on manual experience adjustment. The springback error of thick wire bending is large (more than ±5°), and multiple wires are prone to dislocation, affecting the reliability of electrical connection. Therefore, in view of the above current situation, there is an urgent need to develop a fully automatic handheld secondary wiring machine to overcome the deficiencies in current practical applications. Summary of the Invention

[0004] The purpose of the present invention is to provide a fully automatic handheld secondary wiring machine to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A fully automatic handheld secondary wiring machine includes a main frame body, and further includes:

[0007] A wire pressing bracket, which is detachably connected to the main frame body, and a wire pressing device for different pressing conditions of the cable is further provided on the wire pressing bracket;

[0008] Among them, a reciprocating driving component for driving the wire pressing device to perform bending operation on the cable is further provided on the main frame body;

[0009] A discrimination detector, which is fixedly installed on the main frame body and is detachably connected to the wire pressing device on the wire pressing bracket;

[0010] and an automatic control system, which is located on the main frame body, and the automatic control system is also electrically connected to the discrimination detector and the reciprocating drive assembly respectively;

[0011] When a wire pressing bracket with wire pressing devices having different pressing conditions is combined with the main frame body, the discrimination detector is activated to detect different data, and the automatic control system automatically controls the reciprocating drive assembly to act with different drive programs to accurately bend wires with different types of pressing conditions.

[0012] As a further solution of the present invention: the reciprocating drive assembly includes:

[0013] A DC brushless reduction motor, which is fixedly installed on the main frame body, and the DC brushless reduction motor is also electrically connected to the automatic control system;

[0014] A precision reciprocating lead screw, one end of the precision reciprocating lead screw is fixedly connected to the output end of the DC brushless reduction motor, the other end of the precision reciprocating lead screw is rotatably connected to the main frame body, and a threaded kit is sleeved on the precision reciprocating lead screw, and the threaded kit is threadedly connected to the precision reciprocating lead screw;

[0015] Wherein, the threaded kit is also slidably connected to a slide rail fixedly installed on the main frame body;

[0016] and a wire pressing drive seat, which is fixedly installed on the threaded kit, and a positioning groove is formed on the wire pressing drive seat, and the positioning groove is detachably connected to the wire pressing device.

[0017] As a further solution of the present invention: the wire pressing device under one of the pressing conditions includes:

[0018] A wire pressing female die, which is fixedly connected to the wire pressing bracket;

[0019] A sliding column, both ends of the sliding column are respectively connected to the wire pressing bracket and the wire pressing female die, and a wire pressing male die is slidably installed on the sliding column. Wherein, the wire pressing female die and the wire pressing male die are arranged opposite to each other, and wire pressing grooves are arranged on both the wire pressing female die and the wire pressing male die;

[0020] and a drive unit, which is respectively connected to the main frame body and the wire pressing male die, and is detachably connected to the positioning groove.

[0021] As a further solution of the present invention: the drive unit includes:

[0022] An elastic positioning seat, which is fixedly installed on the sliding column and abuts against the wire pressing male die;

[0023] A sliding communication groove is formed on the main frame body;

[0024] And an L-shaped driving rod, one end of the L-shaped driving rod is fixedly connected to the wire pressing punch, and the other end of the L-shaped driving rod penetrates through the sliding communication groove and is slidably connected to the sliding communication groove;

[0025] And a connecting plug post is fixedly installed on the other end of the L-shaped driving rod, and the connecting plug post is detachably connected to the positioning groove.

[0026] As a further solution of the present invention: it further includes: an expansion placement groove, and the expansion placement groove is located at the bottom end of the sliding communication groove;

[0027] And elastic balls, and the elastic balls are located on the L-shaped driving rod;

[0028] At the initial stage of the cable bending operation, the L-shaped driving rod penetrates through the expansion placement groove. At this time, the elastic balls are arranged facing the expansion placement groove and do not contact the expansion placement groove;

[0029] As the reciprocating driving assembly pushes the L-shaped driving rod to move upward, when the elastic balls reach the sliding communication groove, the elastic balls contact the inner wall of the sliding communication groove and roll on the inner wall of the sliding communication groove.

[0030] As a further solution of the present invention: a U-shaped connecting seat is further arranged on the main frame body, the opening of the U-shaped connecting seat faces downward, and the opening of the U-shaped connecting seat is a square structure;

[0031] The number of the U-shaped connecting seats is four, and the four U-shaped connecting seats are all installed on the main frame body. An anti-slip groove is formed on one side wall of each U-shaped connecting seat, and the anti-slip groove is detachably connected to the wire pressing bracket.

[0032] As a further solution of the present invention: four square rods are fixedly installed on the wire pressing bracket, and the four square rods are respectively used for being clamped in the four openings;

[0033] And a circular limiting baffle is fixedly installed at the end of each square rod, and the circular limiting baffle is detachably connected to the anti-slip groove;

[0034] A tightening control assembly for tightly pressing the circular limiting baffle in the anti-slip groove is further arranged on the main frame body and the wire pressing bracket.

[0035] As a further solution of the present invention: the tightening control assembly includes:

[0036] An installation limiting groove is located on the main frame body, and an installation tightening seat is further arranged in the installation limiting groove;

[0037] A tightening control member, which is installed on the main frame body and is used to drive the installation tightening seat to expand and contract in the installation limiting groove. Among them, a lifting limiting block is further provided on the installation limiting groove, and the lifting limiting block is located at the bottom end position of the installation limiting groove;

[0038] And a square top block, which is located on the wire pressing bracket;

[0039] When the square top block is pushed into the installation limiting groove from bottom to top, the lifting limiting block is in a state of being contracted in the installation limiting groove. When the square top block completely enters the installation limiting groove, the lifting limiting block extends to limit the square top block;

[0040] At this time, the tightening control member drives the installation tightening seat to extend outward in the installation limiting groove, thereby pushing the square top block and the wire pressing bracket to move away from the main frame body until the circular limiting baffle is closely attached to the anti-slip groove.

[0041] As a further solution of the present invention: it further includes: a control plug board, which is fixedly installed on the wire pressing device on the wire pressing bracket;

[0042] Among them, for wire pressing devices under different pressing conditions, the installation positions of the control plug boards are different;

[0043] And a guiding and limiting detection groove, the number of the guiding and limiting detection grooves is multiple, and the multiple guiding and limiting detection grooves are all opened on the discrimination detector, and the guiding and limiting detection groove is also detachably connected to the control plug board.

[0044] As a further solution of the present invention: the control method of the automatic control system includes the following steps:

[0045] Step 1: Identify the type of the currently installed wire pressing device through the discrimination detector, and obtain the parameters of the wire to be pressed: wire diameter, number of bends, and target angle;

[0046] Step 2: Calculate the initial bending pressure F and the driving speed v according to the following formula, and the specific formula is as follows:

[0047] ;

[0048] Among them, K m is the material coefficient, σ y is the yield strength of the wire, R is the radius of the die arc, μ is the friction coefficient, F comp is the springback compensation force, D is the wire diameter, N is the number of bends, and θ is the target angle;

[0049] ;

[0050] Among them, α is the ductility coefficient, and v max is the maximum design speed;

[0051] Step 3: Start the DC brushless reduction motor to drive the precision reciprocating lead screw, push the wire pressing drive seat to move, and monitor the actual pressure F of the cable between the molds and the actual angle θ act during the bending process in real time; act ;

[0052] If the angle deviation e = θ - θact > ±1°, the pressure and speed are corrected through the PID algorithm:

[0053] ;

[0054] PID parameters: K p = 5, K i = 0.1, K d = 2.

[0055] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0056] During the bending process of the cable, according to the diameter of the bent cable, the number of cables bent simultaneously, and the different bending angles, the bending speed and pressure during the bending process are also different, and the structural requirements for the wire pressing equipment are also different. Therefore, when applying different pressure conditions to the cable, first, select a suitable wire pressing equipment (pre-welded on different wire pressing brackets), and install it on the main frame through the wire pressing bracket. During the installation process, through the set discrimination detector, different data will be detected according to the wire pressing equipment under different pressure conditions. For example, different pressure sensors are set on the discrimination detector, and when the wire pressing equipment under different pressure conditions is installed on the main frame, it will contact different pressure sensors. After the corresponding pressure sensor is pressed, the automatic control system will control the reciprocating drive assembly to act with the corresponding drive program. For example, thin wires / single wires require low pressure and high speed to avoid breakage, while thick wires / multiple wires require high pressure and low speed (heating if necessary). Similarly, the larger the bending angle, the higher the torque requirement, and it is necessary to control springback and stress concentration. Then, hold the handle set on the main frame and, under the automatic control of the discrimination detector, make the reciprocating drive assembly drive the wire pressing equipment to perform the bending operation on the cable according to the corresponding working procedure. The operation is simple, and it can accurately bend cables under different types of pressure conditions according to the changes of bending factors, ensuring the bending quality and work efficiency, which provides convenience for the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 It is a schematic perspective view of the full-automatic handheld secondary wiring machine in the embodiment of the present invention.

[0058] Figure 2 Schematic three-dimensional structure diagram of the main frame body in the embodiment of the present invention.

[0059] Figure 3 Schematic three-dimensional structure diagram of the installation position of the discrimination detector in the embodiment of the present invention.

[0060] Figure 4 Schematic three-dimensional structure diagram of the installation limit groove in the embodiment of the present invention.

[0061] Figure 5 Schematic three-dimensional structure diagram of the wire pressing drive seat in the embodiment of the present invention.

[0062] Figure 6 Schematic three-dimensional structure diagram of the automatic control system in the embodiment of the present invention.

[0063] Figure 7 Schematic three-dimensional structure diagram of the threaded kit in the embodiment of the present invention.

[0064] Figure 8 Schematic three-dimensional structure diagram of the wire pressing bracket in the embodiment of the present invention.

[0065] Figure 9 Schematic three-dimensional structure diagram of the L-shaped drive rod in the embodiment of the present invention.

[0066] Figure 10 Schematic three-dimensional structure diagram of the distribution of square rods in the embodiment of the present invention.

[0067] Figure 11 Schematic three-dimensional structure diagram of the square top block in the embodiment of the present invention.

[0068] In the figure: 1-main frame body, 2-handle, 3-U-shaped connecting seat, 4-sliding communication groove, 5-wire pressing bracket, 6-wire pressing concave die, 7-wire pressing convex die, 8-automatic control system, 9-wire pressing drive seat, 10-threaded kit, 11-slide rail, 12-precision reciprocating lead screw, 13-circular limit baffle, 14-expansion placement groove, 15-discrimination detector, 16-guide limit detection groove, 17-lifting limit block, 18-installation limit groove, 19-top tightening control part, 20-installation top tightening seat, 21-anti-slip groove, 22-DC brushless reduction motor, 23-positioning groove, 24-control plug board, 25-wire pressing groove, 26-sliding column, 27-elastic positioning seat, 28-square rod, 29-L-shaped drive rod, 30-elastic ball, 31-connecting plug post, 32-square top block. Detailed implementation manners

[0069] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0070] The following describes the specific implementation of the present invention in detail in conjunction with specific embodiments.

[0071] Please refer to Figures 1 - 11 , a fully automatic handheld secondary wiring machine provided by an embodiment of the present invention includes a main frame body 1, and further includes:

[0072] A wire pressing bracket 5, the wire pressing bracket 5 is detachably connected to the main frame body 1, and a wire pressing device for different pressing conditions of the wire is further provided on the wire pressing bracket 5;

[0073] Among them, a reciprocating drive assembly for driving the wire pressing device to perform a bending operation on the wire is further provided on the main frame body 1;

[0074] A discrimination detector 15, the discrimination detector 15 is fixedly installed on the main frame body 1 and is detachably connected to the wire pressing device on the wire pressing bracket 5;

[0075] And an automatic control system 8, the automatic control system 8 is located on the main frame body 1, and the automatic control system 8 is also electrically connected to the discrimination detector 15 and the reciprocating drive assembly respectively;

[0076] When the wire pressing bracket 5 provided with wire pressing devices with different pressing conditions is combined with the main frame body 1, the discrimination detector 15 is started to detect different data, and the automatic control system 8 automatically controls the reciprocating drive assembly to act with different drive programs to accurately bend wires with different types of pressing conditions.

[0077] During the process of bending a cable, depending on the diameter of the bent cable, the number of cables bent simultaneously, and the bending angle, the pressing speed and pressure during the bending process vary, and the structural requirements for the wire pressing device also differ. Therefore, when applying different pressing conditions to the cable, first, select an appropriate wire pressing device (pre-welded on different wire pressing brackets 5), and install it on the main frame 1 through the wire pressing bracket 5. During the installation process, through the provided discrimination detector 15, different data will be detected according to the wire pressing devices under different pressing conditions. For example, different pressure sensors are set on the discrimination detector 15. When the wire pressing devices under different pressing conditions are installed on the main frame 1, they will come into contact with different pressure sensors. After the corresponding pressure sensors are pressed, the automatic control system 8 will control the reciprocating drive assembly to act with the corresponding drive program. For example, thin wires / single wires require low pressure and high speed to avoid breakage, while thick wires / multiple wires require high pressure and low speed (heating when necessary). Similarly, the larger the bending angle, the higher the torque requirement, and it is necessary to control springback and stress concentration. Then, hold the handle 2 set on the main frame 1, and under the automatic control of the discrimination detector 15, the reciprocating drive assembly will drive the wire pressing device to perform bending operations on the cable according to the corresponding working procedure. The operation is simple, and it can accurately bend cables under different types of pressing conditions according to the changes of bending factors, ensuring the quality of bending and the working efficiency, which provides convenience for the staff.

[0078] In an embodiment of the present invention, please refer to Figures 1 - 11 , the reciprocating drive assembly includes:

[0079] A direct current brushless reduction motor 22, which is fixedly installed on the main frame 1, and the direct current brushless reduction motor 22 is also electrically connected to the automatic control system 8;

[0080] A precision reciprocating lead screw 12, one end of the precision reciprocating lead screw 12 is fixedly connected to the output end of the direct current brushless reduction motor 22, the other end of the precision reciprocating lead screw 12 is rotatably connected to the main frame 1, and a threaded sleeve 10 is sleeved on the precision reciprocating lead screw 12, and the threaded sleeve 10 is threadedly connected to the precision reciprocating lead screw 12;

[0081] Wherein, the threaded sleeve 10 is also slidably connected to the slide rail 11 fixedly installed on the main frame 1;

[0082] And a wire pressing drive seat 9, which is fixedly installed on the threaded sleeve 10, and a positioning groove 23 is opened on the wire pressing drive seat 9, and the positioning groove 23 is detachably connected to the wire pressing device.

[0083] The wire pressing device under one of the pressing conditions includes:

[0084] A wire pressing female die 6, and the wire pressing female die 6 is fixedly connected to the wire pressing support 5;

[0085] A sliding column 26, both ends of the sliding column 26 are respectively connected to the wire pressing support 5 and the wire pressing female die 6, and a wire pressing male die 7 is slidably mounted on the sliding column 26. Wherein, the wire pressing female die 6 and the wire pressing male die 7 are arranged opposite to each other, and wire pressing grooves 25 are provided on both the wire pressing female die 6 and the wire pressing male die 7;

[0086] And a driving unit, the driving unit is respectively connected to the main frame body 1 and the wire pressing male die 7, and is detachably connected to the positioning groove 23.

[0087] The driving unit includes:

[0088] An elastic positioning seat 27, the elastic positioning seat 27 is fixedly installed on the sliding column 26 and abuts against the wire pressing male die 7;

[0089] A sliding communication groove 4, the sliding communication groove 4 is opened on the main frame body 1;

[0090] And an L-shaped driving rod 29, one end of the L-shaped driving rod 29 is fixedly connected to the wire pressing male die 7, the other end of the L-shaped driving rod 29 penetrates through the sliding communication groove 4 and is slidably connected to the sliding communication groove 4;

[0091] And a connecting plug post 31 is fixedly installed on the other end of the L-shaped driving rod 29, and the connecting plug post 31 is detachably connected to the positioning groove 23.

[0092] It further includes: an extended placement groove 14, the extended placement groove 14 is located at the bottom end position of the sliding communication groove 4;

[0093] And an elastic ball 30, the elastic ball 30 is located on the L-shaped driving rod 29;

[0094] At the initial stage of the cable bending operation, the L-shaped driving rod 29 penetrates through the extended placement groove 14. At this time, the elastic ball 30 is arranged opposite to the extended placement groove 14 and does not contact the extended placement groove 14;

[0095] As the reciprocating driving assembly pushes the L-shaped driving rod 29 to move upward, when the elastic ball 30 reaches the sliding communication groove 4, the elastic ball 30 contacts the inner wall of the sliding communication groove 4 and rolls on the inner wall of the sliding communication groove 4.

[0096] When bending a cable, first install a wire pressing device that meets the requirements on the main frame body 1 through a wire pressing bracket 5. At this time, the L-shaped driving rod 29 penetrates through the expansion placement groove 14, the elastic ball 30 is arranged opposite to the expansion placement groove 14 and does not contact the expansion placement groove 14, and the connecting plug post 31 is located directly above the positioning groove 23 and does not contact the positioning groove 23. At this time, the automatic control system 8 controls the DC brushless reduction motor 22 to start with a certain driving program. During the process of the DC brushless reduction motor 22 driving the precision reciprocating screw rod 12 to rotate, through the threaded transmission between the threaded sleeve 10 and the precision reciprocating screw rod 12 and the limiting sliding fit of the slide rail 11 on the threaded sleeve 10, the threaded sleeve 10 can push the wire pressing driving seat 9 upward, and the connecting plug post 31 is inserted into the positioning groove 23. At this time, under the pushing action of the wire pressing driving seat 9, the L-shaped driving rod 29 will move upward in the expansion placement groove 14. When the elastic ball 30 moves upward into the sliding communication groove 4, since the width of the sliding communication groove 4 is smaller than the width of the expansion placement groove 14, at this time, the elastic ball 30 will contact the inner wall of the sliding communication groove 4 and roll in the sliding communication groove 4, so as to ensure the smooth upward movement of the L-shaped driving rod 29. At the same time, the L-shaped driving rod 29 will also drive the wire pressing punch 7 upward. Here, taking the bending angle being greater than 90° and the pressing condition of a single cable as an example, both the wire pressing female die 6 and the wire pressing punch 7 are provided with wire pressing grooves 25. Place the cable to be bent in the wire pressing groove 25. As the wire pressing punch 7 gradually moves upward and contacts the wire pressing female die 6, the bending of the cable is realized. After the bending is completed, as the threaded sleeve 10 moves downward, the wire pressing driving seat 9 will move downward synchronously. At this time, under the action of its own gravity, the wire pressing punch 7 will move downward synchronously with the wire pressing driving seat 9, so as to realize the automatic demoulding of the bent cable, which provides convenience for the staff.

[0097] In an embodiment of the present invention, please refer to Figures 1 - 11 , a U-shaped connecting seat 3 is further provided on the main frame body 1. The opening of the U-shaped connecting seat 3 faces downward, and the opening of the U-shaped connecting seat 3 is a square structure;

[0098] The number of the U-shaped connecting seats 3 is four. The four U-shaped connecting seats 3 are all installed on the main frame body 1. An anti-slip groove 21 is formed on one side wall of each U-shaped connecting seat 3, and the anti-slip groove 21 is detachably connected to the wire pressing bracket 5.

[0099] Four square rods 28 are fixedly installed on the wire pressing bracket 5. The four square rods 28 are respectively used for being clamped in the four openings;

[0100] And a circular limiting baffle 13 is fixedly installed at the end of each square rod 28. The circular limiting baffle 13 is detachably connected to the anti-slip groove 21;

[0101] A tightening control assembly for pressing the circular limit baffle 13 tightly in the anti-slip groove 21 is further provided on the main frame body 1 and the wire pressing bracket 5.

[0102] The tightening control assembly includes:

[0103] An installation limit groove 18 is located on the main frame body 1, and an installation tightening seat 20 is further provided in the installation limit groove 18;

[0104] A tightening control member 19 is installed on the main frame body 1. The tightening control member 19 is used to drive the installation tightening seat 20 to expand and contract in the installation limit groove 18. Wherein, a lifting limit block 17 is further provided on the installation limit groove 18, and the lifting limit block 17 is located at the bottom end position of the installation limit groove 18;

[0105] And a square top block 32 is located on the wire pressing bracket 5;

[0106] When the square top block 32 is pushed into the installation limit groove 18 from bottom to top, the lifting limit block 17 is in a state of being retracted into the installation limit groove 18. When the square top block 32 completely enters the installation limit groove 18, the lifting limit block 17 extends to limit the square top block 32;

[0107] At this time, the tightening control member 19 drives the installation tightening seat 20 to extend outward in the installation limit groove 18, so as to push the square top block 32 and the wire pressing bracket 5 to move away from the main frame body 1 until the circular limit baffle 13 is tightly attached to the anti-slip groove 21.

[0108] Please refer to Figures 1 - 11 , and it further includes: a control plug board 24, and the control plug board 24 is fixedly installed on the wire pressing device on the wire pressing bracket 5;

[0109] Wherein, for wire pressing devices under different pressing conditions, the installation positions of the control plug board 24 are different;

[0110] And a guiding limit detection groove 16. The number of the guiding limit detection grooves 16 is multiple. A plurality of the guiding limit detection grooves 16 are all opened on the discrimination detector 15, and the guiding limit detection groove 16 is also detachably connected to the control plug board 24.

[0111] When different wire pressing devices are installed on the main frame body 1, first, the square rod 28 on the wire pressing bracket 5 is located directly below the opening of the U-shaped connecting seat 3. Subsequently, the wire pressing bracket 5 is pushed upward. At the same time, when the square top block 32 is pushed from bottom to top into the installation limit groove 18, the lifting limit block 17 is in a state of being retracted into the installation limit groove 18. When the square top block 32 completely enters the installation limit groove 18, the lifting limit block 17 extends to limit the square top block 32. At this time, the square rod 28 also just fits into the opening on the U-shaped connecting seat 3. Due to the design of the square structure, it can prevent shaking between the U-shaped connecting seat 3 and the square rod 28 during the pressing process. Then, the tightening control member 19 is activated. Among them, the tightening control member 19 can be in the form of an inflation port. By inflating with an external air source, a pressure effect can be generated in the cavity where the installation tightening seat 20 is located, thereby pushing the installation tightening seat 20 to move outward and pushing the square top block 32 and the wire pressing bracket 5 to move away from the main frame body 1 at the same time until the circular limit baffle 13 enters the anti-slip groove 21 and is in a tight fit position with the anti-slip groove 21. And the tightening control member 19 also has the function of preventing leakage. Only when replacing the wire pressing bracket 5, the high-pressure gas in the cavity can be discharged through other openings. The above are all prior arts, similar to the form of a cylinder, and will not be elaborated here. In addition, the tightening control member 19 can also be in the form of a button. An electromagnet can be set in the cavity, and the expansion and contraction of the installation tightening seat 20 can be controlled by the action of magnetic force;

[0112] When different wire pressing devices are installed on the main frame body 1 through the wire pressing bracket 5, the control insertion plates 24 at different installation positions will enter different guiding limit detection grooves 16. Among them, the guiding limit detection groove 16 is a groove structure that is wider at the bottom and narrower at the top. On the one hand, it can guide and limit the control insertion plate 24 that has just entered the guiding limit detection groove 16. On the other hand, different pressure sensors are arranged in the guiding limit detection groove 16. When the control insertion plate 24 completely enters the guiding limit detection groove 16, that is, after the wire pressing bracket 5 is completely installed on the main frame body 1, under the pressure action of the control insertion plate 24, the data detected by a certain pressure sensor will be transmitted to the discrimination detector 15, and finally, the DC brushless reduction motor 22 will be controlled by the automatic control system 8 to work with different driving programs, and finally realize the precise bending of cables under different types of pressing conditions.

[0113] In an embodiment of the present invention, please refer to Figures 1 - 6 , the control method of the automatic control system 8 includes the following steps:

[0114] Step 1: Identify the type of the currently installed wire pressing device through the discrimination detector 15, and obtain the parameters of the cable to be pressed: wire diameter, number of bends, and target angle;

[0115] Step 2: Calculate the initial bending pressure F and the driving speed v according to the following formulas. The specific formulas are as follows:

[0116] ;

[0117] where K m is the material coefficient (copper = 1.0, aluminum = 0.65), σ y is the yield strength of the wire, R is the radius of the die arc, μ is the friction coefficient, F comp is the springback compensation force, D is the wire diameter, N is the number of bends, and θ is the target angle;

[0118] ;

[0119] where α is the ductility coefficient and v max is the maximum design speed;

[0120] Step 3: Start the DC brushless reduction motor 22 to drive the precision reciprocating lead screw 12, push the wire pressing driving seat 9 to move, and monitor the actual pressure F act and the actual angle θ act of the wire between the dies during the bending process in real time. Among them, the detection can be carried out through a pressure sensor and an angle encoder;

[0121] If the angle deviation e = θ - θact > ±1°, then correct the pressure and speed through the PID algorithm:

[0122] ;

[0123] PID parameters: K p = 5, K i = 0.1, K d = 2 (adaptively adjusted according to the wire diameter).

[0124] It should be noted that in the present invention, unless otherwise clearly specified and limited, terms such as "sliding", "rotating", "fixing", "provided with", etc. should be understood in a broad sense. For example, it can be a welded connection, a bolt connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0125] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fully automatic handheld secondary wiring machine, including a main frame body, characterized in that, It further includes: A wire pressing bracket, which is detachably connected to the main frame body, and a wire pressing device for different wire pressing conditions is further provided on the wire pressing bracket; Among them, a reciprocating driving component for driving the wire pressing device to perform bending operation on the wire is further provided on the main frame body; A discrimination detector, which is fixedly installed on the main frame body and is detachably connected to the wire pressing device on the wire pressing bracket; And an automatic control system, which is located on the main frame body, and the automatic control system is also electrically connected to the discrimination detector and the reciprocating driving component respectively; When the wire pressing bracket with wire pressing devices under different pressing conditions is combined with the main frame body, the discrimination detector will be activated to detect different data, and the automatic control system will automatically control the reciprocating driving component to act with different driving programs to accurately bend wires under different types of pressing conditions.

2. The fully automatic handheld secondary wiring machine according to claim 1, wherein The reciprocating driving component includes: A DC brushless reduction motor, which is fixedly installed on the main frame body, and the DC brushless reduction motor is also electrically connected to the automatic control system; A precision reciprocating lead screw, one end of the precision reciprocating lead screw is fixedly connected to the output end of the DC brushless reduction motor, the other end of the precision reciprocating lead screw is rotatably connected to the main frame body, and a threaded sleeve is sleeved on the precision reciprocating lead screw, and the threaded sleeve is threadedly connected to the precision reciprocating lead screw; Among them, the threaded sleeve is also slidably connected to the slide rail fixedly installed on the main frame body; And a wire pressing driving seat, which is fixedly installed on the threaded sleeve, and a positioning groove is provided on the wire pressing driving seat, and the positioning groove is detachably connected to the wire pressing device.

3. The fully automatic handheld secondary wiring machine according to claim 2, characterized in that, The wire pressing device under one of the pressing conditions includes: A wire pressing female die, which is fixedly connected to the wire pressing bracket; A sliding column, both ends of the sliding column are respectively connected to the wire pressing bracket and the wire pressing female die, and a wire pressing male die is slidably installed on the sliding column. Among them, the wire pressing female die and the wire pressing male die are arranged opposite to each other, and wire pressing grooves are provided on both the wire pressing female die and the wire pressing male die; And a driving unit, which is respectively connected to the main frame body and the wire pressing male die, and is detachably connected to the positioning groove.

4. The fully automatic handheld secondary wiring machine according to claim 3, characterized in that, The driving unit includes: An elastic positioning seat, which is fixedly installed on the sliding column and abuts against the wire pressing male die; A sliding communication groove, which is opened on the main frame body; And an L-shaped driving rod, one end of the L-shaped driving rod is fixedly connected to the wire pressing male die, the other end of the L-shaped driving rod penetrates through the sliding communication groove and is slidably connected to the sliding communication groove; And a connecting plug column is fixedly installed on the other end of the L-shaped driving rod, and the connecting plug column is detachably connected to the positioning groove.

5. The fully automatic handheld secondary wiring machine according to claim 4, characterized in that It further includes: An extended placement groove, which is located at the bottom end of the sliding communication groove; And elastic balls, which are located on the L-shaped driving rod; At the initial stage of the cable bending operation, the L-shaped driving rod penetrates through the extended placement groove. At this time, the elastic ball is arranged opposite to the extended placement groove and does not contact the extended placement groove. As the reciprocating driving assembly pushes the L-shaped driving rod upward, when the elastic ball reaches the sliding communication groove, the elastic ball contacts the inner wall of the sliding communication groove and rolls on the inner wall of the sliding communication groove.

6. The fully automatic handheld secondary wiring machine according to claim 1, wherein The main frame body is further provided with a U-shaped connecting seat, the opening of the U-shaped connecting seat faces downward, and the opening of the U-shaped connecting seat is a square structure. The number of the U-shaped connecting seats is four. The four U-shaped connecting seats are all installed on the main frame body. An anti-slip groove is formed on one side wall of each U-shaped connecting seat, and the anti-slip groove is detachably connected to the wire pressing bracket.

7. The fully automatic hand-held secondary wiring machine according to claim 6, characterized in that, Four square rods are fixedly installed on the wire pressing bracket, and the four square rods are respectively used for being clamped in the four openings. And a circular limiting baffle is fixedly installed at the end of each square rod, and the circular limiting baffle is detachably connected to the anti-slip groove. A tightening control assembly for tightly pressing the circular limiting baffle in the anti-slip groove is further arranged on the main frame body and the wire pressing bracket.

8. The fully automatic handheld secondary wiring machine according to claim 7, wherein, The tightening control assembly includes: An installation limiting groove, which is located on the main frame body, and an installation tightening seat is further arranged in the installation limiting groove. A tightening control member, which is installed on the main frame body, and the tightening control member is used for driving the installation tightening seat to stretch in the installation limiting groove. Wherein, a lifting limiting block is further arranged on the installation limiting groove, and the lifting limiting block is located at the bottom end position of the installation limiting groove. And a square top block, which is located on the wire pressing bracket. When the square top block is pushed into the installation limiting groove from bottom to top, the lifting limiting block is in a state of being contracted in the installation limiting groove. When the square top block completely enters the installation limiting groove, the lifting limiting block extends to limit the square top block. At this time, the tightening control member drives the installation tightening seat to stretch outward in the installation limiting groove, thereby pushing the square top block and the wire pressing bracket to move away from the main frame body until the circular limiting baffle is tightly attached to the anti-slip groove.

9. The fully automatic handheld secondary wiring machine according to claim 1 or 8, characterized in that It further includes: A control plugboard, which is fixedly installed on the wire pressing device on the wire pressing bracket. Wherein, for wire pressing devices under different pressing conditions, the installation positions of the control plugboards are different. And a guiding limiting detection groove. The number of the guiding limiting detection grooves is multiple. The multiple guiding limiting detection grooves are all formed on the discrimination detector, and the guiding limiting detection groove is also detachably connected to the control plugboard.

10. The fully automatic handheld secondary wiring machine according to claim 1, characterized in that, The control method of the automatic control system includes the following steps: Step 1: Identify the type of the currently installed wire pressing device through the discrimination detector, and obtain the parameters of the cable to be pressed: wire diameter, number of bends, and target angle. Step 2: Calculate the initial bending pressure F and driving speed v according to the following formula. The specific formula is as follows: ； Among them, K m is the material coefficient, σ y is the yield strength of the wire, R is the radius of the die arc, μ is the friction coefficient, F comp is the springback compensation force, D is the wire diameter, N is the number of bends, and θ is the target angle; ； where α is the ductility coefficient and v max is the maximum design speed; Step 3: Start the DC brushless reduction motor to drive the precision reciprocating lead screw, push the wire pressing drive seat to move, and monitor the actual pressure F of the cable between the molds and the actual angle θ during the bending process in real time act and the actual angle θ act ; If the angle deviation e = θ - θact > ±1°, the pressure and speed are corrected by the PID algorithm: ； PID parameters: K p = 5, K i = 0.1, K d = 2.

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