A welding machine head for welding the inner ring of a steel cage and main reinforcement

Abstract

The present invention discloses a welding machine head for welding the inner ring of a steel cage and main bars, comprising a machine head body, a main bar fixing device, an inner ring position detection mechanism and a welding gun chuck arranged on the machine head body, the main bar fixing device is used to fix the main bars, the inner ring position detection mechanism is used to detect the position of the welding point between the inner ring of a steel cage skeleton and the main bars, and the welding gun chuck is used to install the welding gun. The welding machine head can automatically take and press the main bars to realize automatic welding, with stable welding points, high welding quality and high production efficiency; the inner ring position detection mechanism can automatically detect the contact position between the inner ring and the main bars, thereby reducing the labor intensity of workers and performing welding quickly and accurately.

Description

Technical Field

[0001] The invention relates to the technical field of steel cage processing, and in particular to a welding machine head used for welding an inner ring of a steel cage and main bars. Background Art

[0002] With the rapid development of domestic road and bridge construction, steel cages are increasingly used in pile foundation construction. However, the traditional method of making steel cages is mostly manual, which leads to high labor intensity for workers, low production efficiency, unstable quality and high cost of steel cages. Or traditional steel cage processing equipment is used. The traditional steel cage processing equipment has a low degree of automation. Although the production efficiency is improved compared with manual production, manual welding is still used when welding the main reinforcement and the inner ring; when welding the main reinforcement and the inner ring, the main reinforcement and the inner ring are fixed manually, resulting in welding requiring two operators to complete, resulting in high labor intensity for workers and low production efficiency of the steel cage; in addition, the welding quality and speed of the main reinforcement and the inner ring depend on the welding technology and speed of the workers, the welding point is irregular in shape, and the quality is unstable, which directly affects the quality and production efficiency of the steel cage; therefore, there is no welding equipment in the prior art that can automatically weld the main reinforcement and the inner ring. Summary of the invention

[0003] The purpose of the present invention is to provide a welding head for welding the inner ring of a steel cage and the main bars, so as to solve the problem in the prior art that there is no automatic welding of the main bars and the inner ring, realize automatic welding of the main bars and the inner ring, and improve welding quality and welding efficiency.

[0004] The present invention is achieved through the following technical solutions:

[0005] A welding machine head for welding the inner ring of a steel cage and main bars, comprising a machine head body and an inner ring position detection mechanism, wherein the inner ring position detection mechanism is movably arranged on the machine head body along the left-right direction and can contact the inner ring, and the inner ring position detection mechanism determines the welding point position of the inner ring and the main bar by contacting the inner ring; further comprising a welding gun chuck, which is movably arranged on the machine head body along the left-right direction in cooperation with the inner ring position detection mechanism, and the welding gun chuck is used to install a welding gun; further comprising a main bar fixing device A, which is arranged on the machine head body and is used to fix the main bar.

[0006] In view of the problem that the prior art cannot automatically weld the main reinforcement and the inner ring, the present invention provides a welding head for welding the inner ring of a steel cage and the main reinforcement. It should be pointed out that the steel cage referred to in this application is a steel cage in the well-known sense, which is composed of three welded parts, namely: the inner ring, the main reinforcement, and the surrounding reinforcement. The welding head of this application is mainly used for welding the inner ring and the main reinforcement of the steel cage. The front and rear directions referred to in this application refer to: when working, the direction of the steel cage skeleton is the front, and the direction away from the steel cage skeleton is the rear; the left and right directions referred to in this application refer to: the direction parallel or substantially parallel to the axis of the steel cage skeleton; the up and down directions referred to in this application refer to: based on the plane formed by the intersection of the above-mentioned front and rear directions and the left and right directions, the direction is perpendicular or substantially perpendicular to the plane.

[0007] The technicians in this field can select a suitable welding gun chuck to achieve the corresponding technical effect. During use, the welding gun clamped on the welding gun chuck can be used to weld the main reinforcement and the inner ring. When the inner ring position detection mechanism collides or contacts the inner ring, it means that the welding point position of the inner ring and the main reinforcement is detected. The welding gun chuck can accurately align the welding gun with the welding starting point. At this time, the welding gun is also started synchronously to weld the inner ring and the main reinforcement. This solution solves the problem of manually finding the welding points of the steel cage frame and performing manual welding in the prior art.

[0008] Preferably, the welding gun chuck also includes a slot connector provided with a slot portion, and the inner ring position detection mechanism also includes a block connector provided with a block portion, the slot of the slot connector and the block of the block connector are arranged in cooperation with each other, and the slot connector and the block connector are movably arranged on the head body along the left and right directions, so as to control the welding gun chuck and the inner ring position detection mechanism to move in cooperation with each other along the left and right directions.

[0009] Preferably, a space is formed between the block portion of the block connector and the slot portion of the slot connector to allow the slot connector to move relative to the block connector.

[0010] Preferably, it also includes a welding gun swinging device and a detection mechanism swinging device, wherein the welding gun swinging device is used to control the welding gun chuck to move in the left and right directions, and the detection mechanism swinging device is used to control the inner ring position detection mechanism to move in the left and right directions.

[0011] Preferably, the welding gun swing device includes a welding gun swing cylinder arranged on the head body, the welding gun swing cylinder is drivingly connected to the welding gun chuck, and can drive the welding gun chuck to move in the left and right directions; the detection mechanism swing device includes a detection swing cylinder arranged on the head body, the detection swing cylinder is drivingly connected to the inner ring position detection mechanism, and can drive the inner ring position detection mechanism to move in the left and right directions.

[0012] Preferably, the head body also includes an upper and lower base and a horizontal base, the upper and lower bases are movably arranged on the head body, the horizontal base is movably arranged on the upper and lower bases along the front and rear directions, the inner ring position detection mechanism is movably arranged on the horizontal base along the left and right directions, and the welding gun chuck cooperates with the inner ring position detection mechanism and is movably arranged on the horizontal base along the left and right directions; the main reinforcement fixing device A also includes a main reinforcement fixing block and a main reinforcement support block, the main reinforcement fixing block is arranged on the horizontal base, and the main reinforcement support block is arranged on the head body.

[0013] Preferably, it further includes a second mounting plate, and the main rib support block is arranged on the head body through the second mounting plate.

[0014] Preferably, it also includes a first driving device and a second driving device, wherein the first driving device is connected to the upper and lower bases, and can drive the upper and lower bases to move up and down, thereby driving the main reinforcement fixing block to move synchronously in the up and down directions; the second driving device is arranged on the upper and lower bases, and is connected to the horizontal base, and can drive the horizontal base to move forward and backward, thereby driving the main reinforcement fixing block to move synchronously in the forward and backward directions, and the main reinforcement fixing block moves in the up and down directions and the forward and backward directions relative to the main reinforcement support block, so as to fix the main reinforcement between the main reinforcement fixing block and the main reinforcement support block. The present invention can realize the forward and backward, vertical and downward movement of the main reinforcement fixing block through the first driving device and the second driving device, and the main reinforcement fixing block can automatically grasp the main reinforcement and firmly fix the main reinforcement on the main reinforcement support block. The present application can automatically grasp, press and loosen the main reinforcement, so that the welding process of the main reinforcement and the inner ring is fully automatic, without the need for manual participation, thereby ensuring the welding quality and improving the production efficiency of the steel cage.

[0015] Preferably, the first driving device includes upper and lower cylinders disposed on the machine head body and drivingly connected to the upper and lower bases, and the upper and lower cylinders can drive the upper and lower bases to move in the up and down directions; the second driving device includes a horizontal cylinder disposed on the upper and lower bases and drivingly connected to the horizontal base, and the horizontal base moves in the front-to-back direction under the drive of the horizontal cylinder. The overall structure of this technical solution is simple, which is conducive to the arrangement of the first driving device and the second driving device, and realizes the front-to-back and vertical and up-and-down movements of the main reinforcement fixing block, and is convenient for the main reinforcement fixing block to take and press main reinforcements of different specifications, which greatly improves the scope of application of the present invention.

[0016] Preferably, a third driving device is also included, the third driving device includes a sliding base, a forward motor, and a guide shaft, the forward motor is connected to the guide shaft through a transmission block, the guide shaft is installed on the sliding base through a guide slider, one end of the guide shaft is connected to the machine head body, and the forward motor is used to drive the guide shaft to move in the front and rear direction. The guide shaft drives the steel cage connected to it, because the steel cage is large, and the overall backward movement of the mechanism requires a greater distance, so the above structure can adapt to steel cages of different diameters.

[0017] Preferably, the third drive device includes a position detection cylinder, which is equipped with a position detection switch. During normal operation, the position detection cylinder remains in an ejection state, and the third drive device drives the machine head to move forward as a whole. When the main reinforcement fixed at the front end of the machine head contacts the inner ring of the steel cage frame, the motor continues to work to keep driving the overall structure forward. The main reinforcement fixed at the front end of the overall structure is blocked by the inner ring of the steel cage frame. When the motor screw continues to rotate, it will drive the guide slider backward, thereby compressing the one-way cylinder piston rod to make it retreat. At this time, the position detection switch on the cylinder detects the retreat of the piston rod, and the position detection switch generates a signal to the control system, so that the system determines that the push is in place and stops the third drive device. The position detection switch is used to detect whether the guide slider moves and change the detection position by adjustment. Available switch types include but are not limited to micro switches, proximity sensors, photoelectric sensors, laser sensors and other common motion-triggered switch types.

[0018] Preferably, it also includes a wire feeder, which is used to convey welding wire to a welding gun that can be mounted on the welding gun chuck to ensure welding quality. Technicians in this field can choose any type of wire feeder to achieve the technical effect.

[0019] Preferably, the main reinforcement support block has an "L"-shaped structure. The L-structured main reinforcement support block can hold the main reinforcement, making it convenient for the main reinforcement fixing block to fix the main reinforcement.

[0020] Preferably, the main reinforcement fixing block is an "L"-shaped flat plate structure. The L-structured main reinforcement fixing block can hook the main reinforcement under the action of the first driving device and the second driving device to prevent the main reinforcement from sliding off the main reinforcement support block, thereby ensuring smooth welding.

[0021] Preferably, it also includes a fourth driving device arranged on the head body, and the fourth driving device is used to drive the main rib support block to move in the front and rear direction. The main rib support block can move backward until the new main rib on the main rib fixing device is supported by the main rib already welded on the inner ring.

[0022] Preferably, it also includes a welding gun adjusting block arranged on the welding gun chuck, and the welding gun adjusting block can adjust the stability of the welding gun during welding, thereby greatly improving the welding quality.

[0023] The present invention has the following beneficial effects:

[0024] 1. The present invention discloses a welding machine head for welding the inner ring of a steel cage and main bars. Through the cooperation between a main bar fixing block and a main bar supporting block, the device can automatically take and press the main bars, thereby realizing automated welding, stable welding points, high welding quality and high production efficiency. An inner ring position detection mechanism can automatically detect the contact position between the inner ring and the main bars, thereby reducing the labor intensity of workers and performing welding quickly and accurately.

[0025] 2. The present invention provides a welding head for welding the inner ring of a steel cage and the main reinforcement. The overall structure is driven to move in the front-rear direction by a third driving device, and can adapt to steel cages of different diameters and specifications, effectively ensuring the welding requirements of steel cages of different diameters and specifications. Through the welding gun swinging device and the detection mechanism swinging device, the inner ring position detection mechanism can swing left and right, and the welding gun chuck can also swing left and right, which greatly increases the welding surface and can quickly and accurately locate the position of the inner ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0027] Figure 1 It is a schematic diagram of a welding head according to a specific embodiment of the present invention.

[0028] Figure 2 FIG. 4 is a schematic diagram of a first driving device according to a specific embodiment of the present invention.

[0029] Figure 3 Schematic diagram of a second driving device according to a specific embodiment of the present invention.

[0030] Figure 4 It is a schematic diagram of a third driving device according to a specific embodiment of the present invention.

[0031] Figure 5 The invention discloses a specific connection structure between the welding gun chuck and the inner ring position detection mechanism.

[0032] Figure numbers and corresponding parts names: 6- welding gun chuck, 8- main rib fixing block, 9- inner ring position detection mechanism, 10- main rib support block, 11- second mounting plate, 1201- vertical base, 1202- upper and lower bases, 1203- upper and lower cylinders, 1301- horizontal base, 1303- horizontal cylinder, 1305- slot connector, 1306- block connector, 14- welding gun swing cylinder, 15- detection swing cylinder, 1601- sliding base, 1602- forward motor, 1603- guide shaft, 1604- guide slider, 1605- transmission block. DETAILED DESCRIPTION

[0033] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0034] Embodiment 1:

[0035] like Figure 1As shown, a welding head for welding the inner ring of a steel cage and a main reinforcement includes a head body, and also includes an inner ring position detection mechanism 9, which is movably arranged on the head body along the left-right direction and can touch the inner ring, and the inner ring position detection mechanism 9 determines the welding point position of the inner ring and the main reinforcement by touching the inner ring; also includes a welding gun chuck 6, the welding gun chuck 6 is movably arranged on the head body along the left-right direction in cooperation with the inner ring position detection mechanism 9, and the welding gun chuck 6 is used to install a welding gun; also includes a main reinforcement fixing device A, the main reinforcement fixing device A is arranged on the head body, and is used to fix the main reinforcement. When the present embodiment is working, the main reinforcement is preset in advance at the position on the inner ring where welding is required, and the main reinforcement fixing device A fixes the main reinforcement at the preset position so that the inner ring is within the detectable range of the inner ring position detection mechanism 9. Since the welding gun chuck 6 and the inner ring position detection mechanism 9 are also arranged on the machine head body, when the main reinforcement fixing device A fixes the main reinforcement, the positions of the welding gun chuck 6 and the inner ring position detection mechanism 9 in the front-to-back direction and the up-to-down direction relative to the main reinforcement can be directly and unambiguously determined. At the same time, the positions of the welding gun chuck 6 and the inner ring position detection mechanism 9 in the front-to-back direction and the up-to-down direction relative to the welding point where the main reinforcement contacts the inner ring can also be directly and unambiguously determined. When the welding gun is installed, the welding gun chuck 6 can first preset the position of the welding gun in the up-to-down direction and the front-to-back direction. The welding gun chuck 6 and the inner ring position detection mechanism 9 can cooperate with each other to move left and right, that is, the welding gun chuck 6 and the inner ring position detection mechanism 9 only need to find the welding point position where the main reinforcement contacts the inner ring from the left and right directions, and then the welding point position of the main reinforcement and the inner ring can be welded; here, "the welding gun chuck 6 cooperates with the inner ring position detection mechanism 9 to be movably arranged on the head body along the left and right directions" means that the welding gun chuck 6 can follow the inner ring position detection mechanism 9, or the inner ring position detection mechanism 9 can follow the welding gun chuck 6, or the welding gun chuck 6 and the inner ring position detection mechanism 9 can move synchronously. When the inner ring position detection mechanism 9 touches the inner ring during the movement, it means that the welding point position of the main reinforcement and the inner ring is also found from the left and right directions. At this time, the welding gun installed on the welding gun chuck 6 also cooperates to find the position of the welding point, and the welding gun installed on the welding gun chuck 6 is started to weld the main reinforcement and the inner ring at the welding point position.

[0036] like Figure 1-4As shown, a welding machine head for welding the inner ring of a steel cage and the main reinforcement includes a welding gun chuck 6, a horizontal base 1301 for mounting the welding gun chuck 6, a main reinforcement fixing block 8 and an inner ring position detection mechanism 9 arranged on the horizontal base 1301, and also includes a first driving device and a second driving device arranged in the machine head body, the first driving device is used to drive the main reinforcement fixing block 8 to move up and down in the vertical direction, the second driving device is used to drive the main reinforcement fixing block 8 to move in the front and rear direction, and also includes a second mounting plate 11 for mounting a main reinforcement support block 10, the main reinforcement fixing block 8 and the main reinforcement support block 10 cooperate with each other to fix the main reinforcement, and the inner ring position detection mechanism 9 is used to detect the contact position between the inner ring and the main reinforcement. When the present embodiment is working, when the main reinforcement is preset above the inner ring, the welding gun is installed on the welding gun chuck 6, and the welding head moves toward the direction of the main reinforcement. The main reinforcement support block 10 is first moved to the bottom of the main reinforcement, and then the main reinforcement fixing block 8, under the action of the first driving device and the second driving device, the main reinforcement fixing block 8 buckles the main reinforcement, and then presses the main reinforcement onto the main reinforcement support block 10, and then the welding head, under the action of the inner ring position detection mechanism 9, welds the contact part between the main reinforcement and the inner ring; during the whole welding process, the main reinforcement fixing block 8 and the main reinforcement support block 10 firmly fit the main reinforcement to the inner ring, the welding point between the main reinforcement and the inner ring is stable, and the welding quality is good.

[0037] Furthermore, two main reinforcement fixing blocks 8 are arranged on the horizontal base 1301, and the two main reinforcement fixing blocks 8 are respectively located on both sides of the horizontal base 1301, and the welding gun chuck 6 and the inner ring position detection mechanism 9 are located between the two main reinforcement fixing blocks 8, and the welding gun chuck 6 and the inner ring position detection mechanism 9 can slide left and right on the horizontal base 1301; the number of the second mounting plates 11 is two, and the two second mounting plates 11 are respectively located on the outside of the main reinforcement fixing blocks 8, and each second mounting plate 11 is provided with a main reinforcement support block 10, and the two main reinforcement fixing blocks 8 are located between the two main reinforcement support blocks 10, and a main reinforcement support block 10 and a main reinforcement fixing block 8 cooperate with each other to fix the main reinforcement. In this embodiment, the welding gun chuck 6, the main reinforcement fixing block 8, the inner ring position detection mechanism 9, and the main reinforcement support block 10 are facing the same side, all facing the direction where the main reinforcement is located.

[0038] Embodiment 2:

[0039] like Figure 1-3A welding machine head for welding the inner ring of a steel cage and main bars is shown. Based on Example 1, the first driving device is connected to the upper and lower bases 1202 to drive the upper and lower bases 1202 to move in the up and down direction; the second driving device includes a driving connection with the horizontal base 1301 to drive the horizontal base 1301 to move in the front and back direction. The second driving device drives the horizontal base 1301 to move, thereby driving the main bar fixing block 8 set on the horizontal base 1301 to move in the front and back direction. In this embodiment, the upper and lower bases 1202 adopt a slide rail design, the first driving device is the upper and lower cylinders 1203, the upper and lower cylinders 1203 are installed on the machine head body through the vertical base 1201, the upper and lower bases 1202 are connected to the output ends of the upper and lower cylinders 1203, and the upper and lower bases 1202 are "T"-shaped structures, consisting of two flat plates. The horizontal base 1301 and the upper and lower bases 1202 adopt a slide rail design, and the number of main bar fixing blocks 8 is 2, which are respectively located on both sides of the horizontal base 1301.

[0040] It also includes a welding gun swinging device and a detection mechanism swinging device arranged on the horizontal base 1301. The welding gun swinging device is used to control the swing of the welding gun chuck 6, and the detection mechanism swinging device is used to control the swing of the inner ring position detection mechanism 9.

[0041] The horizontal base 1301 is a "U"-shaped structure that is flipped 90 degrees and then turned upside down. A slide groove is opened on the side located at the upper relative position, and a welding gun swing device and a detection mechanism swing device are provided on the side located at the lower relative position. At the same time, the bottom of the welding gun chuck 6 is connected to the welding gun swing device through the slide groove, and the inner ring position detection mechanism 9 is connected to the detection mechanism swing device through the slide groove.

[0042] Furthermore, the welding gun swing device includes a welding gun swing cylinder 14, and the welding gun chuck 6 is slidably connected to the horizontal base 1301. The welding gun swing cylinder 14 can drive the welding gun chuck 6 to move left and right along the horizontal base 1301. The detection mechanism swing device includes a detection swing cylinder 15, and the output shaft of the detection swing cylinder 15 is connected to the inner ring position detection mechanism 9.

[0043] Furthermore, the welding gun chuck 6 can follow the inner ring position detection mechanism 9 to determine the welding point position of the inner ring of the steel cage skeleton and the main reinforcement. The welding gun chuck 6 also includes a slot connector 1305 with a slot portion, and the inner ring position detection mechanism 9 also includes a block connector 1306 with a block portion, and the slot of the slot connector 1305 is matched with the block of the block connector 1306; the slot connector 1305 and the block connector 1306 are movably arranged on the horizontal base 1301; the above structure allows the position of the inner ring position detection mechanism 9 to move in coordination with the position of the inner ring position detection mechanism 9, that is, when detecting the welding point position of the inner ring and the main reinforcement, the detection swing cylinder 15 drives the position detection mechanism 9 to move toward the inner ring. First, the inner ring position detection mechanism 9 will push the welding gun chuck 6 to slide on the horizontal base 1301, and when When the inner ring position detection mechanism 9 touches the inner ring within its travel range, it indicates the position of the detection welding point. Since the welding gun chuck 6 is provided with an adjustment block, the relative position of the welding gun and the inner ring position detection mechanism 9 can be pre-adjusted. When the inner ring position detection mechanism 9 detects the welding point position, it means that the welding gun installed on the welding gun chuck 6 also synchronously, quickly and accurately finds the welding point position of the inner ring and the main reinforcement. The welding point position found here is the welding starting point; then, the welding gun starts to start welding. At the same time, the welding gun swing cylinder 14 starts to work, driving the welding gun chuck 6 equipped with the welding gun to move left and right along the horizontal base 1301, so that the welding gun continues to move from the welding starting point on one side of the inner ring to the welding end point on the other side of the inner ring until the welding is completed. The above welding head structure increases the welding area between the inner ring and the main reinforcement, makes the welding more solid, greatly improves the welding quality, and at the same time, greatly improves the production efficiency compared with manual welding.

[0044] Further, such as Figure 5 As shown, a space is formed between the block portion of the block connector 1306 and the slot portion of the slot connector 1305, which allows the slot connector 1305 to move relative to the block connector 1306; the welding gun installed on the welding gun chuck 6 can move continuously from the welding starting point on one side of the inner ring to the welding end point on the other side of the inner ring only within the moving range of the movable space, which can not only increase the effective welding area, but also avoid ineffective over-welding, so as to prevent the welding gun from continuing to work after welding the contact welding point between the inner ring and the main reinforcement, leaving unnecessary burns on the main reinforcement, and effectively avoiding waste of resources.

[0045] Embodiment 3:

[0046] like Figure 4A welding head for welding the inner ring of a steel cage and the main reinforcement is shown. Based on Example 1, this embodiment is further provided with a third driving device, and the third driving device includes a sliding base 1601, a forward motor 1602, and a guide shaft 1603. The forward motor 1602 is connected to the guide shaft 1603 through a transmission block 1605. The guide shaft 1603 is installed on the sliding base 1601 through a guide slider 1604. One end of the guide shaft 1603 is connected to the vertical base 1201. The forward motor 1602 is used to drive the entire structure to move in the front and rear directions. The third driving device is used to drive the main body of the machine head where the welding gun chuck 6 is located, including the first driving device, the second driving device, the main rib fixing block 8, the main rib supporting block 10, the inner ring position detection mechanism 9, the welding gun chuck 6, etc. to move forward and backward. The purpose is to push the main rib to the predetermined position on the inner ring when the main rib is not preset on the inner ring, and then weld the inner ring and the main rib; further, it also includes a thrust cylinder arranged on the sliding base 1601, and a position detection switch is arranged on the cylinder. The output end of the thrust cylinder is connected to the transmission block 1605, and the thrust cylinder is used for the screw rod buffer, that is, the screw rod rotates to push the machine head forward as a whole, and one is needed. Furthermore, the thrust cylinder can also be replaced by a spring.

[0047] During normal operation, the position detection cylinder remains in the pushed-out state, and the third drive device drives the machine head to move forward as a whole. When the main reinforcement fixed at the front end of the machine head contacts the inner ring of the steel cage frame, the motor continues to work to keep driving the overall structure forward. The main reinforcement fixed at the front end of the overall structure is blocked by the inner ring of the steel cage frame. When the motor screw continues to rotate, it will drive the guide slider 1605 to retreat, thereby compressing the one-way cylinder piston rod to make it retreat. At this time, the position detection switch on the cylinder detects the retreat action of the moving guide slider 1605 or the piston rod, and the position detection switch generates a signal to the control system. The system thereby determines that the third drive propulsion has reached the required position, and the system controls the third drive device to stop propulsion. The function of the position detection switch is to detect whether the guide slider 1605 or the piston rod has moved. Its position can be installed at any position where the activity of the guide slider 1605 or the piston rod can be detected. The available switch types include but are not limited to micro switches, proximity sensors, photoelectric sensors, laser sensors and other common motion-triggered switch types. In this embodiment, the output shaft of the forward motor 1602 is fixedly connected to the screw rod, the screw rod cooperates with the transmission block 1605, the axis of the screw rod is parallel to the axis of the guide shaft 1603, and the rotation of the screw rod is converted into axial movement of the guide shaft 1603 through the transmission block 1605. The above movement is realized by a screw rod mechanism and has the characteristics of high precision.

[0048] It also includes a wire feeder arranged above the guide shaft 1603, and the wire feeder is used to feed the welding wire to the welding gun.

[0049] Furthermore, the main reinforcement support block 10 is in an "L"-shaped structure, and the main reinforcement fixing block 8 is an "L"-shaped flat plate structure.

[0050] Furthermore, the driving device further includes a fourth driving device, which is used to drive the main reinforcement support block 10 to move in the front-rear direction, and the main reinforcement support block 10 can move backward until other main reinforcements fixed between the main reinforcement support block 10 and the main reinforcement fixing block 8 are supported by the main reinforcements welded on the inner ring, thereby completing the welding of multiple main reinforcements. The fourth driving device can be a cylinder.

[0051] Furthermore, it also includes a welding gun adjusting block arranged on the welding gun chuck 6, and the welding gun adjusting block is used to adjust the stability of the welding gun and improve the welding quality.

[0052] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A welding machine head for welding the inner ring of a steel cage and main reinforcement, comprising a machine head body, characterized in that: Also includes: an inner ring position detection mechanism (9), the inner ring position detection mechanism (9) being movably arranged on the machine head body in the left-right direction and capable of contacting the inner ring, the inner ring position detection mechanism (9) determining the position of the welding point between the inner ring and the main rib by contacting the inner ring; A welding gun chuck (6), the welding gun chuck (6) is movably arranged on the machine head body along the left-right direction in cooperation with the inner ring position detection mechanism (9), and the welding gun chuck (6) is used for installing a welding gun; A main rib fixing device (A), the main rib fixing device (A) is arranged on the machine head body and is used to fix the main rib; the welding gun chuck (6) also includes a slot connector (1305) provided with a slot portion, the inner ring position detection mechanism (9) also includes a block connector (1306) provided with a block portion, the slot of the slot connector (1305) and the block of the block connector (1306) are arranged in cooperation with each other, the slot connector (1305) and the block connector (1306) are movably arranged on the machine head body in the left and right directions, so as to control the welding gun chuck (6) and the inner ring position detection mechanism (9) to move in the left and right directions in cooperation with each other; It also includes a welding gun swing device and a detection mechanism swing device, wherein the welding gun swing device is used to control the welding gun chuck (6) to move in the left and right directions, and the detection mechanism swing device is used to control the inner ring position detection mechanism (9) to move in the left and right directions.

2. The welding head for welding the inner ring of a steel cage and main bars according to claim 1 is characterized in that: A space is formed between the block portion of the block connector (1306) and the slot portion of the slot connector (1305) to allow the slot connector (1305) to move relative to the block connector (1306).

3. The welding head for welding the inner ring of a steel cage and main bars according to claim 1 is characterized in that: The welding gun swing device comprises a welding gun swing cylinder (14) arranged on the machine head body, the welding gun swing cylinder (14) is drivingly connected to the welding gun chuck (6) and can drive the welding gun chuck (6) to move in the left and right directions; the detection mechanism swing device comprises a detection swing cylinder (15) arranged on the machine head body, the detection swing cylinder (15) is drivingly connected to the inner ring position detection mechanism (9) and can drive the inner ring position detection mechanism (9) to move in the left and right directions.

4. The welding head for welding the inner ring of a steel cage and main bars according to claim 1 is characterized in that: The machine head body also includes an upper and lower base (1202) and a horizontal base (1301). The upper and lower bases (1202) are movably arranged on the machine head body, and the horizontal base (1301) is movably arranged on the upper and lower bases (1202) in the front-rear direction. The inner ring position detection mechanism (9) is movably arranged on the horizontal base (1301) in the left-right direction. The welding gun chuck (6) cooperates with the inner ring position detection mechanism (9) to be movably arranged on the horizontal base (1301) in the left-right direction. The main reinforcement fixing device (A) also includes a main reinforcement fixing block (8) and a main reinforcement support block (10). The main reinforcement fixing block (8) is arranged on the horizontal base (1301), and the main reinforcement support block (10) is arranged on the machine head body.

5. The welding head for welding the inner ring of a steel cage and main bars according to claim 4 is characterized in that: It also includes a second mounting plate (11), and the main rib support block (10) is arranged on the machine head body via the second mounting plate (11).

6. The welding head for welding the inner ring of a steel cage and main bars according to claim 4 is characterized in that: The invention also comprises a first driving device and a second driving device, wherein the first driving device is drivingly connected to the upper and lower bases (1202) and can drive the upper and lower bases (1202) to move up and down, thereby driving the main reinforcement fixing block (8) to move synchronously in the up and down directions; the second driving device is arranged on the upper and lower bases (1202) and is drivingly connected to the horizontal base (1301) and can drive the horizontal base (1301) to move forward and backward, thereby driving the main reinforcement fixing block (8) to move synchronously in the forward and backward directions, and the main reinforcement fixing block (8) moves in the up and down directions and the forward and backward directions relative to the main reinforcement support block (10) so as to fix the main reinforcement between the main reinforcement fixing block (8) and the main reinforcement support block (10).

7. The welding head for welding the inner ring of a steel cage and main bars according to claim 6 is characterized in that: The first driving device includes an upper and lower cylinder (1203) disposed on the head body and drivingly connected to the upper and lower bases (1202), and the upper and lower cylinders (1203) can drive the upper and lower bases (1202) to move in the up and down directions; the second driving device includes a horizontal cylinder (1303) disposed on the upper and lower bases (1202) and drivingly connected to the horizontal base (1301), and the horizontal base (1301) moves along the front and rear direction under the drive of the horizontal cylinder (1303).

8. The welding head for welding the inner ring of a steel cage and main bars according to claim 4 is characterized in that: The invention also includes a third driving device, which includes a sliding base (1601), a forward motor (1602), and a guide shaft (1603). The forward motor (1602) is connected to the guide shaft (1603) through a transmission block (1605). The guide shaft (1603) passes through a guide slider (1604) and is installed on the sliding base (1601). One end of the guide shaft (1603) is connected to the head body. The forward motor (1602) is used to drive the welding head body and the structure on the body to move in the front and rear directions.

9. According to the welding head for welding the inner ring of a steel cage and the main reinforcement of claim 8, the third driving device comprises a position detection cylinder, and a position detection switch is installed on the position detection cylinder.

10. The welding head for welding the inner ring of a steel cage and main bars according to claim 1, characterized in that: Also included is a wire feeder for feeding welding wire to a welding gun which may be mounted on the welding gun cartridge.

11. The welding head for welding the inner ring of a steel cage and main bars according to claim 4, characterized in that: The main reinforcement support block (10) has an "L"-shaped structure.

12. The welding head for welding the inner ring of a steel cage and main bars according to claim 4, characterized in that: The main reinforcement fixing block (8) is an "L"-shaped flat plate structure.

13. The welding head for welding the inner ring of a steel cage and main bars according to claim 4, characterized in that: It also includes a fourth driving device arranged on the head body, and the fourth driving device is used to drive the main rib support block (10) to move in the front-rear direction. The main rib support block (10) can move backward until the new main rib on the main rib fixing device is supported by the main rib already welded on the inner ring.

14. The welding head for welding the inner ring of a steel cage and main bars according to any one of claims 1 to 13, characterized in that: It also comprises a welding gun adjusting block arranged on the welding gun chuck (6).

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