Semi-automatic steel hoop welding equipment

Abstract

The present invention discloses a semi-automatic steel hoop welding equipment, including a conveying mechanism and a frame clamping device, a welding machine, and a clamp unlocking mechanism which are sequentially arranged on the conveying mechanism. The conveying mechanism includes a frame, a transmission wheel arranged on the frame, and a conveyor belt passing around the transmission wheel, and a clamp is arranged on the conveyor belt. The frame clamping device is arranged at the left end of the conveying mechanism, and is used to limit the position of the unwelded steel hoop and press it into the clamp; the welding machine is arranged in the middle of the conveying mechanism, and is used to weld the two ends of the steel hoop at the joint; the clamp unlocking mechanism is arranged at the right end of the conveying mechanism, and is used to cooperate with the clamp to release the welded steel hoop. The semi-automatic steel hoop welding equipment provided by the present invention is safer to operate manually, effectively reduces the workload of workers, improves production efficiency, and can maintain the stability of welding quality.

Description

Technical Field

[0001] The invention relates to the field of steel bar processing, and in particular to semi-automatic steel bar hoop welding equipment. Background Art

[0002] Rebar is one of the commonly used building materials in the construction industry. It has good tensile and compressive strength. It is mainly used as tensile and compressive materials in reinforced concrete to enhance the strength of concrete. Before being put into use, rebar usually needs to be made into steel hoops. The production process includes two steps: bending and welding. In the past, bending and welding had to be done manually by workers. In order to improve efficiency and reduce the workload of workers, people have developed various bending machines.

[0003] However, the step of butting and welding the unsealed steel bar hoop ends is still done manually in the prior art. There are many burrs on the steel bars, which can easily cause injuries to workers during processing. In addition, the manual operation is labor-intensive, with low production efficiency and no guarantee of welding quality.

[0004] Therefore, it is urgent to develop a semi-automatic steel bar hoop welding equipment, which is safer than manual operation and can reduce the workload of workers while improving production efficiency and maintaining stable welding quality. Summary of the invention

[0005] In view of this, the object of the present invention is to provide a semi-automatic steel bar hoop welding equipment, which is safer to operate manually and can reduce the workload of workers, while improving production efficiency and maintaining stable welding quality.

[0006] The semi-automatic steel bar hoop welding equipment provided by the present invention comprises a conveying mechanism and a frame clamping device, a welding machine, and a clamp unlocking mechanism which are sequentially arranged on the conveying mechanism;

[0007] Furthermore, the conveying mechanism includes a frame, a transmission wheel arranged on the frame and a conveyor belt passing around the transmission wheel. The conveyor belt is provided with a clamp, and the clamp includes a fixed base installed in conjunction with the conveyor belt and two clamping devices arranged on the fixed base for respectively fixing the two ends of the unwelded steel bar hoop.

[0008] Furthermore, the framing and clamping device is arranged at the left end of the conveying mechanism, and includes a mounting platform, a limiting framing device and a clamping device. The limiting framing device is used to limit the width of the steel bar hoop, thereby limiting the docking of the two ends of the steel bar hoop; the clamping device is used to press the limited end of the steel bar hoop into the clamp for fixing.

[0009] Furthermore, the welding machine is arranged in the middle of the conveying mechanism, and is used to weld the butt joints of the two ends of the steel bar hoop; the clamp unlocking mechanism is arranged at the right end of the conveying mechanism, and is used to cooperate with the clamp to release the welded steel bar hoop.

[0010] Furthermore, the conveying mechanism also includes a power source; the transmission wheel is a gear disk fixed on the shaft and provided with a weight-reducing hole, including a driving wheel and a driven wheel, which are respectively arranged at both ends of the frame, and the conveyor belt passes around the driving wheel and the driven wheel. The power source is connected to the driving wheel to provide power for the driving wheel, thereby driving the driven wheel and the conveyor belt to move.

[0011] Furthermore, the frame is provided with a mounting crossbeam for mounting the driving wheel, and the driving wheel is rotatably matched with the mounting crossbeam in a single degree of freedom; the frame is also provided with a mounting slide rail for mounting the driven wheel, and a tensioning mechanism is provided on the mounting slide rail, and the tensioning mechanism includes a sliding member and a guide column with one end arranged on the sliding member, the guide column is provided with a spring, and the other end is arranged on the frame; the mounting slide rail includes two upper and lower rails, the sliding member is provided with a groove for matching with the mounting slide rail, and is slidably matched with the mounting slide rail in a single degree of freedom through the groove; the driven wheel is rotatably matched with the sliding member in a single degree of freedom.

[0012] Furthermore, the conveyor belt includes two chains and a chain connector disposed between the chains, the inner chain plates of the two chains are bent between the two chains to form a symmetrical installation position, and the chain connector is disposed at the installation position to connect the two chains as a whole.

[0013] Furthermore, a protective plate is provided on the frame, and the protective plate is horizontally arranged between the driving wheel and the driven wheel, with both ends respectively tangent to the top of the driving wheel and the driven wheel; a support frame for supporting the steel bar hoop is provided on the protective plate, and the support frame includes a connecting rod arranged on the protective plate and a support rod detachably fixedly connected to the connecting rod, and the support rod is arranged in parallel with the conveyor belt and is higher than the conveyor belt in the vertical direction.

[0014] Furthermore, the clamp is fixed on the conveyor belt through a fixed base, and the clamping device includes a mounting seat, a sliding mechanism arranged on the mounting seat and a rear clamping plate arranged at one end of the mounting seat, and a front clamping plate is arranged on the sliding mechanism opposite to the rear clamping plate.

[0015] Furthermore, the sliding mechanism comprises a positioning block and a sliding block, wherein the positioning block is arranged at one end of the mounting seat, and the sliding block is arranged inside the positioning block and is spaced a certain distance from the positioning block; the front clamping plate and the rear clamping plate are arranged opposite to each other on one side of the sliding block;

[0016] Furthermore, the sliding mechanism also includes a spring guide column, which is arranged between the sliding block and the positioning block, and a spring is sleeved on the spring guide column, and the two ends of the spring are respectively connected to the positioning block and the sliding block; one end of the spring guide column is fixed to the sliding block, and the other end is inserted into the positioning block with a clearance fit with the positioning block. The mounting seat is provided with a guide rail, and the sliding block moves linearly along the guide rail; the mounting seat is also provided with a limit pin, and the limit pin is used to limit the sliding block and maintain the distance between the front clamping plate and the rear clamping plate.

[0017] Furthermore, the mounting platform is fixedly mounted on the frame, with a horizontal mounting plate on the top, two vertical plates are vertically mounted at a certain interval on the upper surface of the mounting plate, two pairs of slide rails I and slide rails II are respectively arranged on the outer sides of the two vertical plates, slide rail I is provided with a slide plate I, and slide plate I is connected to a connecting plate I with reinforcing ribs; slide rail II is provided with a slide plate II, and slide plate II is connected to a connecting plate II with reinforcing ribs; the limiting frame mechanism includes a positioning mounting arm, a positioning cylinder, a limiting plate and a limiting cylinder, and the clamping mechanism includes a clamping fork mounting plate, a clamping cylinder and a clamping fork.

[0018] Further, the positioning mounting arm is arranged at the front part of the lower surface of the mounting plate, one end of the connecting plate I is fixed to the slide plate I, and the other end is fixed to the upper surface of the positioning mounting arm, the slide plate I is slidably matched with the slide rail I on the vertical plate in a single degree of freedom, the positioning cylinder is arranged at the front part between the two vertical plates on the upper surface of the mounting plate, and the piston rod of the cylinder passes through the mounting plate and is connected to the positioning mounting arm; the limiting cylinder includes a left limiting cylinder and a right limiting cylinder, which are detachably fixedly connected and arranged on both sides of the lower surface of the positioning mounting arm, and the limiting plate includes a left limiting plate and a right limiting plate, which are respectively fixed on the piston rods of the left and right limiting cylinders;

[0019] Furthermore, the clamping fork mounting plate is arranged at the rear part of the lower surface of the mounting plate, one end of the connecting plate II is fixed to the slide plate II, and the other end is fixed to the upper surface of the clamping fork mounting plate, the slide plate II is slidably matched with the slide rail II on the vertical plate in a single degree of freedom, and the clamping cylinder is arranged at the rear part between the two vertical plates on the upper surface of the mounting plate, and the piston rod of the cylinder passes through the mounting plate and is connected with the clamping fork mounting plate; the clamping fork includes a low-position clamping fork and a high-position clamping fork, which are arranged on the lower surface of the clamping fork mounting plate, and the high-position clamping fork is higher than the low-position clamping fork in the vertical direction; a spacing is left between the front clamping plate and the rear clamping plate of the steel bar hoop, and the tops of the front clamping plate and the rear clamping plate are smoothly transitioned to both sides, forming a notch that is convenient for the clamping fork to press the steel bar into the clamp.

[0020] Furthermore, the sliding mechanism also includes an unlocking plate, one end of which is fixedly set on the sliding block, and the other end extends outward beyond the mounting seat by a certain length. The unlocking plate is provided with a bearing column at the end away from the mounting seat, and the bearing column is vertically arranged on the unlocking plate, connected to the unlocking plate at the top, and provided with a bearing at the bottom.

[0021] Furthermore, the clamp unlocking mechanism includes a channel steel that is approximately semicircular and is arranged at the right end of the conveying mechanism, and the width of its groove is greater than the diameter of the bearing on the steel bar hoop. The channel steel is fixed to the frame and is arranged in parallel with the conveyor belt at a certain angle. The distance between the channel steel and the conveyor belt gradually increases and then decreases along the movement direction of the conveyor belt.

[0022] Furthermore, the minimum distance between the outer wall of the channel steel and the conveyor belt is greater than the distance between the outer edge of its bearing and the conveyor belt when the clamp is clamped, and the maximum distance between the inner wall of the channel steel and the conveyor belt is equal to the distance between the inner edge of its bearing and the conveyor belt when the clamp is loosened.

[0023] Beneficial effects of the present invention: The semi-automatic steel bar hoop welding equipment provided by the present invention is relatively safe in manual operation, can reduce the workload of workers, improve the production efficiency of steel bar hoops, and maintain stable welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the top view of the structure of the present invention;

[0027] Figure 3 It is a schematic diagram of the front structure of the conveying mechanism;

[0028] Figure 4 It is a schematic diagram of the conveying mechanism from a top view;

[0029] Figure 5 This is a schematic diagram of the front structure of the frame clamping device;

[0030] Figure 6 It is a schematic diagram of the side structure of the frame clamping device;

[0031] Figure 7 It is a schematic diagram of the structure of the clamping device; DETAILED DESCRIPTION

[0032] like Figure 1 to Figure 2 Combined with Figures 3 to 7As shown: the semi-automatic steel bar hoop welding equipment of this embodiment includes a conveying mechanism 1 and a frame clamping device 2, a welding machine 3, and a clamp unlocking mechanism 4 which are sequentially arranged on the conveying mechanism 1; the sequential arrangement means that they are arranged from front to back according to the running direction of the conveying mechanism 1. A clamp 5 is arranged on the conveying mechanism 1. The steel bar hoop that is not welded closed is fixed in the clamp 5 after being limited and framed by the frame clamping device 2. The conveying mechanism 1 is operated to send the steel bar hoop that is not welded closed to the welding machine 3, which is welded by the welding machine 3 and then conveyed to the clamp unlocking mechanism 4, where the clamp 5 is released. The steel bar hoop after welding is affected by gravity and falls and is stacked beside the equipment.

[0033] In this embodiment, the conveying mechanism 1 includes a frame 101, a transmission wheel arranged on the frame 101, and a conveyor belt 109 passing around the transmission wheel. The conveying mechanism 1 also includes a power source 104; the transmission wheel is a gear disc fixed on an axis and provided with a weight-reducing hole, including a driving wheel 102 and a driven wheel 103, which are respectively arranged at both ends of the frame 101; the conveyor belt 109 passes around the driving wheel 102 and the driven wheel 103, and the power source 104 is connected to the driving wheel 102 to provide power for the driving wheel 102, thereby driving the driven wheel 103 and the conveyor belt 109 to move. Among them, the power source 104 is an electric motor, which is arranged on the right side of the frame 101 together with the driving wheel 102, and is connected to the shaft of the driving wheel 102 to drive it to rotate; the driven wheel 103 is arranged on the left side of the frame 101, and the driving wheel 102 and the driven wheel 103 are both composed of two gear discs of the same model fixed on the axis at a certain distance. The left and right sides of the frame 101 are provided with a plurality of gear discs of the same model fixed on the axis at a certain distance. Figure 3 The left and right sides in the front structural diagram of the conveying mechanism are used as reference.

[0034] In this embodiment, the frame 101 is provided with a mounting beam 105 for mounting the driving wheel 102, and the driving wheel 102 is rotatably matched with the mounting beam 105 in a single degree of freedom; the frame 101 is also provided with a mounting rail 106 for mounting the driven wheel 103, and a tensioning mechanism is arranged on the mounting rail 106, and the tensioning mechanism includes a sliding member 107 and a guide column 108 with one end arranged on the sliding member 107, the guide column 108 is provided with a spring, and the other end is arranged on the frame 101; the mounting rail 106 includes two upper and lower rails, and the sliding member 107 is provided with a groove for fixing the mounting rail 106, and is slidably matched with the mounting rail 106 in a single degree of freedom through the groove; the driven wheel 103 is rotatably matched with the sliding member 107 in a single degree of freedom.

[0035] In this embodiment, the driving wheel 102 can only rotate after being fixed, but cannot translate; while the driven wheel 103 is installed on the tensioning mechanism, and the sliding member 107 of the tensioning mechanism is stuck between the upper and lower horizontally arranged mounting rails 106 through the upper and lower grooves, and can slide horizontally on the mounting rails 106. One end of the guide column 108 is fixed on the sliding member 107, and the other end passes through the frame columns where the two mounting rails 106 are located, and is matched with the clearance of the frame columns. The guide column 108 is sleeved with a spring and a nut. The driven wheel 103 is installed on the sliding member 107, and the horizontal position of the driven wheel 103 can be changed by the translation of the sliding member 107, so as to keep the tension of the conveyor belt 109.

[0036] In this embodiment, the conveyor belt 109 includes two chains 1091 and a chain connector 1092 disposed between the chains. The inner chain plates of the two chains 1091 are bent between the two chains to form a symmetrical installation position. The chain connector 1092 is disposed at the installation position to connect the two chains as a whole. The two chains of the conveyor belt 109 are respectively meshed with the gear teeth of the two gear discs of the transmission wheel.

[0037] In this embodiment, a protective plate 110 is further provided on the frame 101, and the protective plate 110 is horizontally arranged between the driving wheel 102 and the driven wheel 103, and its two ends are tangent to the top of the driving wheel 102 and the driven wheel 103 respectively; the protective plate 110 is two symmetrically arranged steel plates, and the upper ends of the steel plates are relatively bent to cover the two chains 1091 of the conveyor belt 109, leaving only the chain connector 1092 exposed, to prevent debris from getting stuck in the chain and affecting the operation, while also protecting the workers.

[0038] In this embodiment, a support frame for supporting the steel bar hoop is provided on the outer protective plate, and the support frame includes a connecting rod 111 provided on the protective plate and a supporting rod 112 detachably fixedly connected to the connecting rod 111, and the supporting rod 112 is arranged in parallel with the conveyor belt 109 and is higher than the conveyor belt 109 in the vertical direction. The supporting rod 112 is used to support the unclamped part of the steel bar hoop to prevent the steel bar hoop from being affected by gravity and causing position changes at the joint of the ends, thereby affecting the welding quality. The supporting rod 112 is detachably fixedly connected to the connecting rod 111, and the distance between the supporting rod 112 and the conveyor belt 109 can be changed according to the size of the steel bar hoop by adjusting the position of the supporting rod 112 on the connecting rod 111 to support the appropriate position of the steel bar hoop.

[0039] In this embodiment, a clamp 5 is provided on the conveyor belt 109, and the clamp 5 includes a fixed base installed in conjunction with the conveyor belt 109 and two clamping devices provided on the fixed base for respectively fixing the two ends of the steel bar hoop. The clamp 5 is installed on the conveyor belt 109 at a certain interval, and the chain connector 1092 at the desired installation position is removed, and the chain connector 1092 is replaced by the fixed base of the clamp 5 and installed on the installation position of the two chains. The fixed base is a rectangular plate with two sides extending forward and a concave middle, shaped like the Chinese character "concave". The bottom is fixed at the installation position, and clamping devices are installed on the two sides extending out. The purpose is to allow the two ends of the steel bar hoop to meet in the middle of the "concave", so as to facilitate welding by the welding machine 3 while maintaining stable clamping.

[0040] In this embodiment, the clamping device includes a mounting seat 501, a sliding mechanism disposed on the mounting seat 501, and a rear clamping plate 502 disposed at one end of the mounting seat 501. A front clamping plate 503 is disposed on the sliding mechanism opposite to the rear clamping plate 502. The sliding mechanism includes a positioning block 504 and a sliding block 505. The positioning block 504 is disposed at one end of the mounting seat 501. The sliding block 505 is disposed inside the positioning block 504 and is spaced a certain distance from the positioning block 504. The front clamping plate 503 is disposed opposite to the rear clamping plate 502 on one side of the sliding block 505. Figure 7 The left and right sides in the schematic diagram of the clamping device structure are used as references. The mounting seat 501 is a plate with the right end bent upward, and the rear clamping plate 502 is vertically fixed on the bend at the right end of the mounting seat 501; the positioning block 504 of the sliding mechanism is fixed to the left end of the mounting seat 501, and the sliding block 505 is installed at a certain distance on the right side of the positioning block 504, and the front clamping plate 503 is installed on the right side of the sliding block 505. The rear clamping plate 502 and the front clamping plate 503 are both inverted "L"-shaped materials, with vertical surfaces facing each other, and are buckled on the mounting seat 501 and the sliding block 505 respectively. The outer side of the corner is a smooth transition, which is convenient for cooperation with the fixed frame clamping device 2. The various parts are fixedly connected by bolts, and of course other methods such as welding, bonding, etc. can also be used, which will not be repeated here.

[0041] In this embodiment, the sliding mechanism further includes a spring guide column 506, which is arranged between the sliding block 505 and the positioning block 504. A spring is sleeved on the spring guide column 506, and the two ends of the spring are respectively connected to the positioning block 504 and the sliding block 505; one end of the spring guide column 506 is fixed to the sliding block 505, and the other end is inserted into the positioning block 504 with a clearance fit with the positioning block 504. A guide rail 507 is arranged on the mounting seat 501, and the sliding block 505 moves linearly along the guide rail 507; a limit pin is also arranged on the mounting seat 501, and the limit pin is used to limit the sliding block 505 and maintain the distance between the front clamping plate 503 and the rear clamping plate 502. The spacing between the front and rear clamping plates is also for matching the fixed frame clamping device 2. When the steel bar is clamped between the front and rear clamping plates, the rear clamping plate 502 is fixed, and the front clamping plate 503 drives the sliding block 505 to move leftward along the guide rail 507. The spring guide column 506 extends out of the positioning block 504, and the spring is compressed to generate a reverse force, pushing the sliding block 505 and the front clamping plate 503 to the right, thereby clamping the steel bar.

[0042] In this embodiment, the framing and clamping device 2 is arranged at the left end of the conveying mechanism 1, and includes a mounting platform 201, a limiting framing device and a clamping device. The limiting framing device is used to limit the width of the steel bar hoop, thereby limiting the docking of the two ends of the steel bar hoop; the clamping device is used to press the limited end of the steel bar hoop into the clamp 5 for fixing.

[0043] In this embodiment, the mounting platform 201 is fixedly arranged on the frame 101, and a horizontal mounting plate 202 is provided on the top. Two vertical plates 203 are vertically arranged at a certain interval on the upper surface of the mounting plate 202. Two pairs of slide rails I204 and slide rails II205 are respectively provided on the outer sides of the two vertical plates 203. A slide plate I2061 is provided on the slide rail I204, and the slide plate I2061 is connected to a connecting plate I2071 with reinforcing ribs. A slide plate II2062 is provided on the slide rail II205, and the slide plate II2062 is connected to a connecting plate II2072 with reinforcing ribs. The limiting frame mechanism includes a positioning mounting arm 208, a positioning cylinder 209, a limiting plate 210 and a limiting cylinder 211. The clamping device includes a clamping fork mounting plate 212, a clamping cylinder 213 and a clamping fork 214. The slide rail I204 and the slide rail II205 each include two slide rails, the slide rail I204 is located at the front of both sides of the two vertical plates, and the slide rail II205 is located at the rear of both sides of the two vertical plates. Figure 5 The front and rear directions in the front structural diagram of the fixed frame clamping device are used as the reference, with approaching being the front and moving away being the rear.

[0044] In this embodiment, the positioning mounting arm 208 is arranged at the front part of the lower surface of the mounting plate 202, one end of the connecting plate I2071 is fixed to the slide plate I2061, and the other end is fixed to the upper surface of the positioning mounting arm 208, the slide plate I2061 is slidably matched with the slide rail I204 on the vertical plate 203 in a single degree of freedom, and the positioning cylinder 209 is arranged at the front part between the two vertical plates 203 on the upper surface of the mounting plate 202, and the piston rod of the cylinder passes through the mounting plate 202 and is connected to the positioning mounting arm 208; when the piston rod of the positioning cylinder 209 is pushed out, the positioning mounting arm 208 is forced to move downward, the connecting plate I2071 moves downward accordingly, and the slide plate I2061 moves downward along the slide rail I204.

[0045] In this embodiment, the limiting cylinder 211 includes a left limiting cylinder and a right limiting cylinder, which are detachably fixedly connected on both sides of the lower surface of the positioning mounting arm 208, and the limiting plate 210 includes a left limiting plate and a right limiting plate, which are respectively fixed on the piston rods of the left and right limiting cylinders; the position of the limiting cylinder 211 on the positioning mounting arm 208 is variable, and the distance between the left and right limiting cylinders can be adjusted according to the size of the steel bar hoop.

[0046] In this embodiment, the clamping fork mounting plate 212 is arranged at the rear of the lower surface of the mounting plate 202, one end of the connecting plate II2072 is fixed to the slide plate II2062, and the other end is fixed to the upper surface of the clamping fork mounting plate 212, the slide plate II2062 is slidably matched with the slide rail II205 on the vertical plate 203 in a single degree of freedom, the clamping cylinder 213 is arranged at the rear between the two vertical plates 203 on the upper surface of the mounting plate 202, and the piston rod of the cylinder passes through the mounting plate 202 and is connected to the clamping fork mounting plate 212. The clamping fork 214 includes a low-position clamping fork and a high-position clamping fork, which are arranged on the lower surface of the clamping fork mounting plate 212, and the high-position clamping fork is higher than the low-position clamping fork in the vertical direction. When the piston rod of the clamping cylinder 213 is pushed out, the clamping fork mounting plate 212 is forced to move downward, the connecting plate II2072 moves downward accordingly, and the slide plate II2062 moves downward along the slide rail II205.

[0047] In this embodiment, a gap is left between the front clamping plate 503 and the rear clamping plate 502 of the clamp 5, and the tops of the front clamping plate 503 and the rear clamping plate 502 are smoothly transitioned to both sides, forming a notch that facilitates the pressing fork 214 to press the steel bar into the clamp 5. When working, the worker places the two ends of the unwelded steel bar hoop in the high-position pressing fork and the low-position pressing fork respectively, and the two sides of the steel bar hoop are between the two limit plates 210, and the limit cylinder 211 pushes the limit plate 210 to limit the width of the steel bar hoop. Then the piston rods of the positioning cylinder 209 and the clamping cylinder are pushed out together, and the positioning mounting arm 208 and the clamping fork mounting plate 212 are forced to move downward at the same time, and the limit cylinder 211 is installed on the lower surface of the positioning mounting arm 208; the clamping fork 214 is set on the lower surface of the clamping fork mounting plate 212; under the action of the two cylinders, the clamping fork 214 pushes the steel hoop and the limit plate 210 downward together, while keeping the width of the steel hoop limited, and presses its two ends into the two clamping devices of the clamp 5 to fix the steel hoop. Among them, the end pressed by the low-position clamping fork is at the bottom, and the end pressed by the high-position clamping fork is at the top, and the two ends of the steel hoop are on the same vertical plane.

[0048] In this embodiment, the welding machine 3 is arranged in the middle of the conveying mechanism 1, and is used to weld the butt joints of the two ends of the steel bar hoop. The welding machine 3 is provided with a sensor. When the conveying mechanism 1 is running, the clamp 5 holding the unwelded steel bar hoop comes to the welding machine 3, and the welding machine 3 automatically welds the butt joints of the two ends of the steel bar hoop. After the welding is completed, the conveying mechanism 1 automatically runs and sends the clamp holding the welded steel bar hoop to the clamp unlocking mechanism 4.

[0049] In this embodiment, the clamp unlocking mechanism 4 is arranged at the right end of the conveying mechanism 1, and is used to cooperate with the clamp 5 to release the welded steel bar hoop. The sliding mechanism of the clamp 5 is provided with an unlocking plate 508, one end of which is fixedly arranged on the sliding block 505, and the other end extends outwardly beyond the mounting seat 501 for a certain length. The unlocking plate 508 is provided with a bearing column at the end away from the mounting seat 501, and the bearing column is vertically arranged on the unlocking plate, the top is connected to the unlocking plate, and the bottom is provided with a bearing 509.

[0050] In this embodiment, the clamp unlocking mechanism 4 is a channel steel that is approximately semicircular and is arranged at the right end of the conveying mechanism 1, and the width of its groove is greater than the diameter of the bearing 509 on the steel hoop. The channel steel is fixed to the frame 101 and arranged in parallel with the conveyor belt 109 at a certain angle. The distance between the channel steel and the conveyor belt 109 gradually increases first and then decreases along the moving direction of the conveyor belt 109. The distance between the two ends of the semicircle and the conveyor belt 109 is the smallest, and the distance between the conveyor belt 109 at the largest arc is the largest. The minimum distance between the outer wall of the channel steel and the conveyor belt 109 is greater than the distance between the outer edge of the bearing and the conveyor belt 109 when the clamp 5 is clamped, and the maximum distance between the inner wall of the channel steel and the conveyor belt 109 is equal to the distance between the inner edge of the bearing and the conveyor belt 109 when the clamp 5 is released.

[0051] In this embodiment, when the conveying mechanism 1 conveys the clamp holding the steel bar hoop to the clamp unlocking mechanism 4, it first reaches the minimum distance between the channel steel and the conveyor belt 109, at which time the bearing 509 of the clamp 5 just enters the groove of the channel steel; the conveying mechanism 1 continues to operate, the clamp 5 moves forward, and as the distance between the channel steel and the conveyor belt 109 gradually increases, the inner wall of the channel steel gradually begins to push the bearing 509 away from the conveyor belt 109, and the unlocking plate 508 moves accordingly, pulling the sliding block 505 and the front clamping plate 503 thereon away from the rear clamping plate 502. When the distance between the channel steel and the conveyor belt 109 is the maximum, the distance between the front clamping plate 503 and the rear clamping plate 502 reaches the maximum, the clamp 5 releases the clamped steel bar hoop, and the steel bar hoop falls to the side of the equipment due to gravity, and the welding work of the steel bar hoop is completed.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A semi-automatic steel bar hoop welding equipment, characterized in that: It includes a conveying mechanism and a frame clamping device, a welding machine, and a clamp unlocking mechanism which are sequentially arranged on the conveying mechanism; The conveying mechanism includes a frame, a transmission wheel arranged on the frame and a conveyor belt passing around the transmission wheel, the conveyor belt is provided with a clamp, and the clamp includes a fixed base installed in conjunction with the conveyor belt and two clamping devices arranged on the fixed base for respectively fixing two ends of the steel bar hoop; The framing and clamping device is arranged at the left end of the conveying mechanism, and includes a mounting platform, a limiting framing device and a clamping device. The limiting framing device is used to limit the width of the steel bar hoop, thereby limiting the butt connection between the two ends of the steel bar hoop; the clamping device is used to press the limited steel bar hoop end into the clamp for fixing; The welding machine is arranged in the middle of the conveying mechanism, and is used to weld the butt joints of the two ends of the steel bar hoop; the clamp unlocking mechanism is arranged at the right end of the conveying mechanism, and is used to cooperate with the clamp to release the welded steel bar hoop; The clamp is fixedly mounted on the conveyor belt through a fixed base, and the clamping device includes a mounting seat, a sliding mechanism arranged on the mounting seat, and a rear clamping plate arranged on one end of the mounting seat, and a front clamping plate is arranged on the sliding mechanism opposite to the rear clamping plate; The sliding mechanism comprises a positioning block and a sliding block, wherein the positioning block is arranged at one end of the mounting seat, and the sliding block is arranged inside the positioning block and is spaced a certain distance from the positioning block; the front clamping plate and the rear clamping plate are arranged opposite to each other on one side of the sliding block; The sliding mechanism further comprises a spring guide column, which is arranged between the sliding block and the positioning block, and a spring is sleeved on the spring guide column, and the two ends of the spring are respectively connected to the positioning block and the sliding block; one end of the spring guide column is fixed to the sliding block, and the other end is inserted into the positioning block with clearance fit with the positioning block; The mounting seat is provided with a guide rail, and the sliding block moves linearly along the guide rail; the mounting seat is also provided with a limit pin, and the limit pin is used to limit the sliding block and maintain the distance between the front clamping plate and the rear clamping plate; The mounting platform is fixedly arranged on the frame, and a horizontal mounting plate is arranged on the top. Two vertical plates are vertically arranged at a certain interval on the upper surface of the mounting plate. Two pairs of slide rails I and II are arranged on the outer sides of the two vertical plates. A slide plate I is arranged on the slide rail I, and the slide plate I is connected to the connecting plate I with reinforcement ribs; a slide plate II is arranged on the slide rail II, and the slide plate II is connected to the connecting plate II with reinforcement ribs; The position limiting and framing mechanism comprises a positioning mounting arm, a positioning cylinder, a position limiting plate and a position limiting cylinder, and the clamping device comprises a clamping fork mounting plate, a clamping cylinder and a clamping fork; The positioning mounting arm is arranged at the front part of the lower surface of the mounting plate, one end of the connecting plate I is fixed to the slide plate I, and the other end is fixed to the upper surface of the positioning mounting arm, the slide plate I is slidably matched with the slide rail I on the vertical plate in a single degree of freedom, the positioning cylinder is arranged at the front part between the two vertical plates on the upper surface of the mounting plate, and the piston rod of the cylinder passes through the mounting plate and is connected to the positioning mounting arm; The limiting cylinder includes a left limiting cylinder and a right limiting cylinder, which are detachably fixedly connected and arranged on both sides of the lower surface of the positioning mounting arm, and the limiting plate includes a left limiting plate and a right limiting plate, which are respectively fixed on the piston rods of the left and right limiting cylinders; The clamping fork mounting plate is arranged at the rear part of the lower surface of the mounting plate, one end of the connecting plate II is fixed to the slide plate II, and the other end is fixed to the upper surface of the clamping fork mounting plate, the slide plate II is slidably matched with the slide rail II on the vertical plate in a single degree of freedom, the clamping cylinder is arranged at the rear part between the two vertical plates on the upper surface of the mounting plate, and the piston rod of the cylinder passes through the mounting plate and is connected to the clamping fork mounting plate; the clamping fork includes a low-position clamping fork and a high-position clamping fork, which are arranged on the lower surface of the clamping fork mounting plate, and the high-position clamping fork is higher than the low-position clamping fork in the vertical direction; A gap is left between the front clamping plate and the rear clamping plate, and the tops of the front clamping plate and the rear clamping plate are smoothly transitioned to both sides to form a notch that is convenient for the pressing fork to press the steel bar into the clamp.

2. The semi-automatic steel bar hoop welding equipment according to claim 1 is characterized in that: The conveying mechanism also includes a power source; the transmission wheel is a gear disc fixed on the shaft and provided with a weight-reducing hole, including a driving wheel and a driven wheel, which are respectively arranged at both ends of the frame, the conveyor belt passes around the driving wheel and the driven wheel, and the power source is connected to the driving wheel.

3. The semi-automatic steel bar hoop welding equipment according to claim 2 is characterized in that: The frame is provided with a mounting crossbeam for mounting the driving wheel, and the driving wheel is rotatably mounted on the mounting crossbeam with a single degree of freedom; The frame is also provided with a mounting rail for mounting a driven wheel, and a tensioning mechanism is provided on the mounting rail, and the tensioning mechanism includes a sliding member and a guide column with one end arranged on the sliding member, a spring is sleeved on the guide column, and the other end is arranged on the frame; the mounting rail includes two upper and lower rails, and the sliding member is provided with a groove for matching with the mounting rail, and is slidably matched with the mounting rail through the groove with a single degree of freedom; the driven wheel is rotatably matched with the sliding member with a single degree of freedom; The conveyor belt includes two chains and a chain connector disposed between the chains, the inner chain plates of the two chains are bent between the two chains to form a symmetrical installation position, and the chain connector is disposed at the installation position to connect the two chains into one; The frame is also provided with a protective plate, which is horizontally arranged between the driving wheel and the driven wheel, and its two ends are respectively tangent to the top of the driving wheel and the driven wheel; the protective plate is provided with a support frame for supporting the steel bar hoop, and the support frame includes a connecting rod arranged on the protective plate and a support rod detachably fixedly connected to the connecting rod, the support rod is arranged in parallel with the conveyor belt and is higher than the conveyor belt in the vertical direction.

4. The semi-automatic steel bar hoop welding equipment according to claim 1 is characterized in that: The sliding mechanism also includes an unlocking plate, one end of which is fixedly mounted on the sliding block, and the other end of which extends outwardly beyond the mounting seat by a certain length. The unlocking plate is provided with a bearing column at the end away from the mounting seat, and the bearing column is vertically arranged on the unlocking plate, connected to the unlocking plate at the top, and provided with a bearing at the bottom.

5. The semi-automatic steel bar hoop welding equipment according to claim 4 is characterized in that: The clamp unlocking mechanism includes a channel steel that is arranged on the right end of the conveying mechanism and is approximately semicircular, and the width of its groove is greater than the diameter of the bearing. The channel steel is fixed to the frame and is arranged in parallel with the conveyor belt at a certain angle. The distance between the channel steel and the conveyor belt gradually increases and then decreases along the movement direction of the conveyor belt.

6. The semi-automatic steel bar hoop welding equipment according to claim 5 is characterized in that: The minimum distance between the outer wall of the channel steel and the conveyor belt is greater than the distance between the outer edge of its bearing and the conveyor belt when the clamp is clamped, and the maximum distance between the inner wall of the channel steel and the conveyor belt is equal to the distance between the inner edge of its bearing and the conveyor belt when the clamp is loosened.

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