A cap beam frame piece welding positioning device

Abstract

The present invention relates to the field of infrastructure technology, and specifically to a cap beam skeleton piece welding positioning device, comprising an operating table, on which a cap beam skeleton piece to be welded is placed; a positioning clamping mechanism comprises a No. 1 cylinder, which is fixedly connected to the bottom of the operating table through a connecting plate, the output end of the No. 1 cylinder points into a through slot and is fixedly connected to an L-shaped rod, a guide slot is provided on the horizontal portion of the L-shaped rod, a clamping plate is symmetrically slidably connected in the guide slot, the end of the screw rod is fixedly connected to the output end of a motor, and the motor is horizontally fixedly connected to the vertical end of the L-shaped rod; the welding positioning device, through the position of the through slot, enables steel bars to be placed according to the position points of the through slot, thereby playing a positioning role, and the setting of the positioning clamping mechanism can simultaneously and synchronously clamp and fix the steel bars, and simultaneously and synchronously release the steel bars, relative to operating each fastening structure one by one, the setting of the positioning clamping mechanism can effectively improve the positioning and fixation of the cap beam skeleton piece.

Description

Technical Field

[0001] The invention relates to the technical field of infrastructure, in particular to a welding positioning device for a cap beam skeleton piece. Background Art

[0002] The standardization and factoryization of prefabricated design and construction have become new technologies, new means and trends in the development of engineering construction. The use of this technology for construction is environmentally friendly and has significant economic benefits. It is in line with the national construction technology development direction and the requirements of green buildings and green construction. It has great use value and promotion and application prospects and can be widely used in the field of highway bridge construction.

[0003] In highway bridge construction, pier modules and cap beam modules are prefabricated and transported to the installation site after processing. A cap beam skeleton piece is set inside the cap beam and wrapped with a formwork, and then concrete is poured into the formwork. After solidification, the cap beam module is formed.

[0004] The production of the cap beam skeleton piece is also pre-made. In the welding workshop, each steel bar of the cap beam skeleton piece is horizontally fixed, and the steel bar connection points are welded by a welding robot. Now a relatively mature assembly line processing has been formed; and the existing method of fixing each steel bar of the cap beam skeleton piece is to set up multiple fastening structures on the ground, that is, through two extrusion plates, and then cooperate with fastening bolts, rotate and tighten the fastening bolts, and the extrusion plates squeeze the steel bar connection points together. The steel bars are bent in advance, and each steel bar only needs to be spliced ​​according to the drawings. The operation of each fastening structure needs to be operated one by one, which is troublesome and laborious. At the same time, when removing the welded cap beam skeleton piece, each fastening structure needs to be operated one by one, which is time-consuming and inefficient. For the cap beams produced by the assembly line, the welding efficiency of the cap beam skeleton piece is low, and subsequent operations will also be negatively affected.

[0005] Therefore, in order to solve the above problems, a cap beam frame piece welding positioning device is proposed. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a cap beam skeleton piece welding positioning device described in the present invention comprises an operating table, on which a cap beam skeleton piece to be welded is placed; a through groove is provided at a position on the operating table corresponding to the welding point on the cap beam skeleton piece, and a positioning clamping mechanism is provided in the through groove; the positioning clamping mechanism comprises a No. 1 cylinder, which is fixedly connected to the bottom of the operating table through a connecting plate, and the output end of the No. 1 cylinder points to the through groove and is fixedly connected with an L-shaped rod, and a guide groove is provided on the horizontal part of the L-shaped rod, and a clamping plate is symmetrically slidably connected in the guide groove, and a semicircular groove is provided on the upper end of the clamping plate, and a screw rod is transmission-connected on the lower half side wall of the clamping plate, and the end of the screw rod is fixedly connected to the output end of the motor, and the motor is horizontally fixedly connected to the vertical end of the L-shaped rod; in the embodiment of the present invention, by designing an efficient cap beam skeleton piece welding positioning device, the production of the cap beam skeleton piece can be accelerated; each steel bar of the cap beam skeleton piece is placed on the operating table according to the drawing, and the welding point between the steel bars is placed at the notch position of the through groove, and after placement , drive the No. 1 hydraulic cylinder to push up the L-shaped rod, and at the same time, two clamping plates are placed on both sides of the point to be welded. After the movement and rising are completed, the control motor drives the screw to rotate, and the two clamping plates are arranged opposite to the screw rotation connection thread. After the screw rotates, the two clamping plates approach each other, and the upper semicircular groove of the clamping plate is gradually squeezed on the surface of the steel bar. After the motor rotates, the clamping plate tightens the steel bar together, and the welding robot welds the welding point at this time; after the welding is completed, the driving motor is reversed, the two clamping plates move away from each other and reset, and no longer squeeze the steel bar, and then the No. 1 hydraulic cylinder also drives the L-shaped rod to move down and reset. At this time, the welded cap beam skeleton piece is placed on the operating table; the welding positioning device, through the position of the through groove, enables the steel bar to be placed according to the position point of the through groove, which plays a positioning role. At the same time, the setting of the positioning clamping mechanism can simultaneously clamp and fix the steel bar, and simultaneously release the steel bar. Compared with operating each fastening structure one by one, the setting of the positioning clamping mechanism can effectively improve the positioning and fixation of the cap beam skeleton piece.

[0008] Preferably, a positioning piece is provided on the outer side of the outer steel bars of the cap beam skeleton piece, and a positioning piece is also provided on the end of the inner ring supporting steel bars of the cap beam skeleton piece, one end of the positioning piece is fixedly connected to the operating table, and the other end of the positioning piece is inclined and bent outward; when each steel bar is placed on the operating table, the positioning piece can constrain the position of the steel bar, so that the welding point between two adjacent steel bars can be accurately placed at the notch position of the through groove, ensuring that the clamping plate that rises later can effectively wrap around the surface of the steel coil, thereby improving the welding accuracy between the steel bars, and helping to ensure the welding quality of the cap beam skeleton piece.

[0009] Preferably, the operating table is also provided with a plurality of through holes, which penetrate the operating table and are located below the outer reinforcement of the cap beam frame piece. An arc plate is slidably connected in the through holes. The inner concave surface of the arc plate is opposite to the outer reinforcement of the cap beam frame piece. A No. 2 cylinder is fixedly connected to the lower surface of the arc plate, and the No. 2 cylinder is fixedly connected to the lower surface of the operating table. The cap beam frame piece is made of steel coils. After the welding of the cap beam frame piece is completed, each steel coil is laid flat on the operating table. When the cap beam frame piece is carried down from the operating table, it is inconvenient to align the cap beam frame piece. To grab and lift the beam frame piece, the No. 2 cylinder and the arc plate are set up. After the welding of the cap beam frame piece is completed, the clamping plate moves down and retracts into the through groove, and then the No. 2 cylinder is driven, and the arc plate pushes the cap beam frame piece up, and the cap beam frame piece is suspended on the surface of the operating table. At this time, it is convenient for the operator to grab and drop the cap beam frame piece. Even if it is not grabbed and dropped manually, the mechanical arm can also be used to grab and unload the material. The end of the mechanical arm imitates the human hand claw, which can effectively grab the steel bars of the cap beam frame piece to achieve fast and stable grabbing and unloading.

[0010] Preferably, a plurality of grooves are provided on the operating table, the grooves are located below the middle of the inner ring supporting steel bars of the cap beam skeleton piece, a magnetic plate is provided in the grooves, and the magnetic plate is flush with the surface of the operating table; the outer steel bars of the cap beam skeleton piece are formed by bending a single steel bar, and the interior is formed by splicing a plurality of supporting steel bars, and when placing the supporting steel bars inside the cap beam skeleton piece, in order to ensure the stability of the supporting steel bars, a magnetic plate is set to pre-adsorb the supports on the operating table to prevent the adjacent supporting steel bars from disturbing the placed supporting steel bars when they are placed, causing the position of the supporting steel bars to be offset, thereby affecting the welding quality of the cap beam skeleton piece.

[0011] Preferably, a dust extraction unit is provided on one side of the through groove; the dust extraction unit includes a right-angle tube and an adsorption tube; one end of the right-angle tube is fixedly connected to the operating table and connected to a tube body provided on the side wall of the operating table, and the other end of the right-angle tube is connected to the adsorption tube, and an adsorption port is provided on one side of the adsorption tube, and the adsorption port is inclined toward the welding point on the cap beam skeleton piece; when the cap beam skeleton piece is welded, welding smoke will be generated. According to the preliminary compilation and reference of the list of carcinogens published by the International Agency for Research on Cancer of the World Health Organization, welding smoke is in the list of Class I carcinogens, and welding smoke has chronic hazards to the workers in the production plant. Therefore, a dust extraction unit is provided on one side of the operating table, and the tube body is connected to an external negative pressure pump. During welding, the generated smoke is extracted into the right-angle tube by the adsorption tube, and then extracted from the tube body out of the factory building to ensure the health of the workers in the factory building; and the extracted smoke is filtered and discharged into the environment without harm.

[0012] Preferably, a blocking rod is slidably connected to one end of the right-angle tube, and an L-shaped channel is provided in the blocking rod. The upper end of the channel is connected to the right-angle tube, and the horizontal end of the channel passes through the middle side of the blocking rod and is arranged opposite to the tube body. The lower end of the blocking rod slides through the through groove and is connected to the through groove by a spring, and the housing of the motor is squeezed on the lower end of the blocking rod; when the clamping plate has not risen to the notch position of the through groove, the blocking rod is under the elastic force of the spring, and the solid surface on the blocking rod blocks the air inlet port of the tube body. When the No. 1 hydraulic cylinder pushes the clamping plate to the notch position of the through groove, the motor rises and squeezes the blocking rod upward. At this time, the lower end of the channel of the blocking rod is connected with the tube body, and the tube body is connected with the right-angle tube through the channel. The smoke generated by welding is sucked into the right-angle tube and flows into the tube body along the channel to realize the extraction of smoke. The setting of the blocking rod allows the negative pressure pump to be in working state all the time, instead of being started and stopped intermittently. Intermittent start and stop will cause damage to the negative pressure pump and reduce its service life.

[0013] Preferably, the end of the screw rod is threadedly connected to a threaded barrel, the end of the threaded barrel is fixedly connected to a positioning rod, the top rod is inserted into a positioning hole opened on the side wall of the through groove, the two sides of the threaded barrel are symmetrically fixed with limiting rods, and the ends of the limiting rods are slidably connected to the limiting grooves symmetrically opened on the horizontal plane of the L-shaped rod; when the clamping plate moves to the notch position of the through groove, the motor is started, the screw rod rotates, the clamping plate clamps the steel bar together, and at the same time, the rotation of the screw rod causes the threaded barrel to move toward the positioning hole, and then the positioning rod on the threaded barrel is gradually inserted into the positioning hole, at this time, the position of the positioning clamping mechanism is stabilized in the through groove, the stability of the positioning clamping mechanism in the through groove is improved, thereby ensuring the stability of the clamping plate to the steel bar.

[0014] Preferably, a sliding hole is provided at the lower end of the clamping plate near the positioning hole, and a push rod is slidably connected in the sliding hole, one end of the push rod is vertically fixed to the lower end of the clamping plate away from the positioning hole, and the other end of the push rod passes through the guide groove and extends into a fixing hole provided in the inner side wall of the through groove, and the fixing hole is located below the positioning hole; when the two clamping plates approach each other, the clamping plate farther from the positioning hole pushes the push rod to gradually insert into the fixing hole, which further consolidates the position stability of the positioning clamping mechanism, improves the stability of the positioning clamping mechanism in the through groove, and ensures the stability of the clamping plate on the steel bars.

[0015] Preferably, a conical convex portion is provided in the semicircular groove, the semicircular groove is wrapped around the surface of the steel bar, and the convex portion is embedded between adjacent lines on the surface of the steel bar; the semicircle is wrapped around the surface of the steel bar, and the convex portion is embedded between adjacent lines on the surface of the steel bar, thereby improving the wrapping stability of the clamping plate on the steel bar and preventing the steel bar from warping up and detaching from the semicircular groove during welding.

[0016] Preferably, the limit groove is connected to the part where the push rod passes through the L-shaped rod, and the end of the limit rod extends vertically to the part where the push rod passes through the L-shaped rod, and is vertically fixed to the push rod; the limit rod and the push rod are fixed together, and the clamping plate and the threaded cylinder that are far away from the positioning hole are set as a whole, moving synchronously, thereby improving the stability of the positioning clamping mechanism itself.

[0017] The present invention is beneficial in that:

[0018] 1. The welding positioning device of the present invention, through the position of the through slot, enables the steel bars to be placed according to the position points of the through slot, thereby playing a positioning role. At the same time, the setting of the positioning clamping mechanism can clamp and fix the steel bars simultaneously and synchronously, and release the steel bars simultaneously. Compared with operating each fastening structure one by one, the setting of the positioning clamping mechanism can effectively improve the positioning and fixation of the cap beam frame piece.

[0019] 2. The present invention provides a positioning piece. When each steel bar is placed on the operating table, the positioning piece can constrain the position of the steel bar, so that the welding point between two adjacent steel bars can be accurately placed at the notch position of the through groove, ensuring that the clamping plate that rises later can effectively wrap around the surface of the steel coil, thereby improving the welding accuracy between the steel bars and helping to ensure the welding quality of the cap beam skeleton plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a first-view stereoscopic diagram of the welding positioning device in Example 1;

[0021] Figure 2 A second perspective stereoscopic view of the welding positioning device in Example 1;

[0022] Figure 3 A third perspective stereoscopic view of the welding positioning device in Example 1;

[0023] Figure 4 It is a three-dimensional diagram of the cooperation between the cap beam frame piece and the positioning clamping mechanism in the first embodiment;

[0024] Figure 5 is a three-dimensional diagram of the clamping plate in the first embodiment;

[0025] Figure 6 A first-view stereoscopic diagram of the positioning and clamping mechanism in Embodiment 1;

[0026] Figure 7 A second perspective stereoscopic diagram of the positioning and clamping mechanism in the first embodiment;

[0027] Figure 8 It is a cross-sectional view of the positioning and clamping mechanism in the first embodiment;

[0028] Fig. 9It is a three-dimensional diagram of the cooperation between the ejector rod and the limiting rod in the second embodiment;

[0029] In the figure: cap beam skeleton plate 1, operating table 2, through groove 3, No. 1 cylinder 4, connecting plate 41, L-shaped rod 5, guide groove 6, clamping plate 7, semicircular groove 8, screw 9, motor 10, positioning plate 11, through hole 12, arc plate 13, No. 2 cylinder 14, magnetic plate 15, right angle tube 16, adsorption tube 17, tube body 18, blocking rod 19, channel 20, threaded tube 21, positioning rod 22, positioning hole 23, limiting rod 24, limiting groove 25, sliding hole 26, push rod 27, fixing hole 28, protrusion 29. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0031] Embodiment 1:

[0032] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6A cap beam frame piece welding positioning device comprises an operating table 2, on which a cap beam frame piece 1 to be welded is placed; a through groove 3 is provided at a position corresponding to a welding point on the cap beam frame piece 1 on the operating table 2, and a positioning clamping mechanism is provided in the through groove 3; the positioning clamping mechanism comprises a No. 1 cylinder 4, which is fixedly connected to the bottom of the operating table 2 through a connecting plate 41, and the output end of the No. 1 cylinder 4 points to the through groove 3 and is fixedly connected with an L-shaped rod 5, and a guide groove 6 is provided at the horizontal part of the L-shaped rod 5, and a clamp is symmetrically slidably connected in the guide groove 6. The holding plate 7 has a semicircular groove 8 at the upper end thereof, and a screw rod 9 is connected to the lower half of the side wall of the clamping plate 7 for transmission. The end of the screw rod 9 is fixedly connected to the output end of the motor 10, and the motor 10 is horizontally fixedly connected to the vertical end of the L-shaped rod 5. In the embodiment of the present invention, by designing an efficient cap beam skeleton piece welding positioning device, the production of the cap beam skeleton piece 1 can be accelerated. Each steel bar of the cap beam skeleton piece 1 is placed on the operating table 2 according to the drawing, and the points to be welded between the steel bars are placed at the notch position of the through groove 3. After placement, the No. 1 hydraulic cylinder is driven The L-shaped rod 5 is pushed up, and the two clamping plates 7 are placed on both sides of the welding point. After the movement and lifting are completed, the control motor 10 drives the screw rod 9 to rotate, and the two clamping plates 7 are arranged opposite to the screw rod 9 rotating connection thread. After the screw rod 9 rotates, the two clamping plates 7 approach each other, and the upper semicircular groove 8 of the clamping plate 7 is gradually squeezed on the surface of the steel bar. After the rotation of the motor 10 is completed, the clamping plate 7 tightens the steel bar together, and the welding robot welds the welding point at this time; after the welding is completed, the driving motor 10 is reversed, and the two clamping plates 7 move away from each other and reset, and no longer squeeze the steel bar, and then the No. 1 hydraulic cylinder also drives the L-shaped rod 5 to move down and reset. At this time, the welded cap beam skeleton piece 1 is placed on the operating table 2; the welding positioning device, through the position of the through groove 3, enables the steel bar to be placed according to the position point of the through groove 3, which plays a positioning role. At the same time, the setting of the positioning clamping mechanism can simultaneously clamp and fix the steel bar, and simultaneously release the steel bar. Compared with operating each fastening structure one by one, the setting of the positioning clamping mechanism can effectively improve the positioning and fixation of the cap beam skeleton piece 1.

[0033] Reference Figure 1 and Figure 3 A positioning piece 11 is provided on the outer side of the outer steel bar of the cap beam skeleton piece 1, and a positioning piece 11 is also provided on the end of the inner ring supporting steel bar of the cap beam skeleton piece 1. One end of the positioning piece 11 is fixedly connected to the operating table 2, and the other end of the positioning piece 11 is inclined and bent outward; the positioning piece 11 is provided, and when each steel bar is placed on the operating table 2, the positioning piece 11 can constrain the position of the steel bar, so that the welding point between two adjacent steel bars can be accurately placed at the notch position of the through groove 3, ensuring that the clamping plate 7 that rises later can effectively wrap around the surface of the steel coil, thereby improving the welding accuracy between the steel bars, and helping to ensure the welding quality of the cap beam skeleton piece 1.

[0034] Reference Figure 1 , Figure 2 and Figure 4 The operating table 2 is also provided with a plurality of through holes 12, which penetrate the operating table 2 and are located below the outer reinforcement of the cap beam skeleton piece 1. An arc plate 13 is slidably connected in the through hole 12, and the inner concave surface of the arc plate 13 is opposite to the outer reinforcement of the cap beam skeleton piece 1. A No. 2 cylinder 14 is fixedly connected to the lower surface of the arc plate 13, and the No. 2 cylinder 14 is fixedly connected to the lower surface of the operating table 2; the cap beam skeleton piece 1 is made of steel coils. After the welding of the cap beam skeleton piece 1 is completed, each steel coil is flatly placed on the operating table 2. When the cap beam skeleton piece 1 is moved down from the operating table 2, it is not necessary to In order to facilitate the grabbing and lifting of the cap beam skeleton piece 1, the No. 2 cylinder 14 and the arc plate 13 are arranged to cooperate. After the welding of the cap beam skeleton piece 1 is completed, the clamping plate 7 moves down and retracts into the through groove 3, and then the No. 2 cylinder 14 is driven, and the arc plate 13 pushes up the cap beam skeleton piece 1, and the cap beam skeleton piece 1 is suspended on the surface of the operating table 2. At this time, it is convenient for the operator to grab and drop the cap beam skeleton piece 1. Even if it is not grabbed and dropped manually, the material can be grabbed and discharged by a mechanical arm. The end of the mechanical arm imitates the claws of human hands, which can effectively grab the steel bars of the cap beam skeleton piece 1 to achieve fast and stable grabbing and discharge.

[0035] Reference Figure 1 A plurality of grooves are provided on the operating table 2, and the grooves are located below the middle of the inner ring supporting steel bars of the cap beam skeleton piece 1. A magnetic plate 15 is provided in the grooves, and the magnetic plate 15 is flush with the surface of the operating table 2; the outer steel bars of the cap beam skeleton piece 1 are formed by bending a steel bar, and the interior is formed by splicing a plurality of supporting steel bars. When the supporting steel bars inside the cap beam skeleton piece 1 are placed, in order to ensure the stability of the supporting steel bars, the magnetic plate 15 is provided to pre-adsorb the supports on the operating table 2, so as to prevent the adjacent supporting steel bars from disturbing the placed supporting steel bars when they are placed, causing the position of the supporting steel bars to be offset, thereby affecting the welding quality of the cap beam skeleton piece 1.

[0036] Reference Figure 3 and Figure 8A dust extraction unit is provided on one side of the through groove 3; the dust extraction unit includes a right-angle tube 16 and an adsorption tube 17; one end of the right-angle tube 16 is fixedly connected to the operating table 2, and is connected to a tube body 18 provided on the side wall of the operating table 2, and the other end of the right-angle tube 16 is connected to an adsorption tube 17, and an adsorption port is provided on one side of the adsorption tube 17, and the adsorption port is inclined toward the welding point on the cap beam skeleton piece 1; when the cap beam skeleton piece 1 is welded, welding smoke will be generated. According to the preliminary compilation and reference of the list of carcinogens published by the International Agency for Research on Cancer of the World Health Organization, welding smoke is in the list of Class I carcinogens, and welding smoke has chronic hazards to the workers in the production plant. Therefore, a dust extraction unit is provided on one side of the operating table 2, and the tube body 18 is connected to an external negative pressure pump. During welding, the generated smoke is extracted into the right-angle tube 16 by the adsorption tube 17, and then extracted from the tube body 18 from the plant to ensure the health of the workers in the plant; and the extracted smoke is filtered and discharged into the environment without harm.

[0037] Reference Figure 8 A blocking rod 19 is slidably connected to one end of the right-angle tube 16, and an L-shaped channel 20 is provided in the blocking rod 19. The upper end of the channel 20 is connected to the right-angle tube 16, and the horizontal end of the channel 20 penetrates to the middle side of the blocking rod 19 and is arranged opposite to the tube body 18. The lower end of the blocking rod 19 slides through the through groove 3 and is connected to the through groove 3 through a spring, and the housing of the motor 10 is squeezed on the lower end of the blocking rod 19; when the clamping plate 7 does not rise to the notch position of the through groove 3, the blocking rod 19 is under the elastic force of the spring, and the solid surface on the blocking rod 19 blocks the air inlet end of the tube body 18. When hydraulic cylinder No. 1 pushes the clamping plate 7 to the slot position of the through slot 3, the motor 10 rises and squeezes the blocking rod 19 upward. At this time, the lower end of the channel 20 of the blocking rod 19 is connected with the tube body 18. At this time, the tube body 18 is connected with the right-angle tube 16 through the channel 20. The smoke generated by welding is sucked into the right-angle tube 16 and flows into the tube body 18 along the channel 20 to realize the extraction of smoke. The setting of the blocking rod 19 allows the negative pressure pump to be in working state all the time instead of starting and stopping intermittently. Intermittent starting and stopping will cause damage to the negative pressure pump and reduce its service life.

[0038] Reference Figure 6 , Figure 7 and Figure 8The end of the screw rod 9 is threadedly connected to a threaded tube 21, and the end of the threaded tube 21 is fixedly connected to a positioning rod 22. The top rod 27 is inserted into the positioning hole 23 opened on the side wall of the through groove 3. The two sides of the threaded tube 21 are symmetrically fixed with limiting rods 24, and the ends of the limiting rods 24 are slidably connected to the limiting grooves 25 symmetrically opened on the horizontal plane of the L-shaped rod 5; when the clamping plate 7 moves to the notch position of the through groove 3, the motor 10 is started, the screw rod 9 rotates, and the clamping plate 7 clamps the steel bar together. At the same time, the rotation of the screw rod 9 causes the threaded tube 21 to move toward the positioning hole 23, and then the positioning rod 22 on the threaded tube 21 is gradually inserted into the positioning hole 23. At this time, the position of the positioning clamping mechanism is stabilized in the through groove 3, thereby improving the stability of the positioning clamping mechanism in the through groove 3, thereby ensuring the clamping stability of the clamping plate 7 on the steel bar.

[0039] Reference Figure 6 , Figure 7 and Figure 8 , a sliding hole 26 is provided at the lower end of the clamping plate 7 close to the positioning hole 23, and a push rod 27 is slidably connected in the sliding hole 26. One end of the push rod 27 is vertically fixed to the lower end of the clamping plate 7 away from the positioning hole 23, and the other end of the push rod 27 passes through the guide groove 6 and extends into the fixing hole 28 provided on the inner side wall of the through groove 3, and the fixing hole 28 is located below the positioning hole 23; when the two clamping plates 7 approach each other, the clamping plate 7 farther from the positioning hole 23 pushes the push rod 27 to gradually insert into the fixing hole 28, which further consolidates the position stability of the positioning clamping mechanism, improves the stability of the positioning clamping mechanism in the through groove 3, and ensures the clamping stability of the clamping plate 7 on the steel bar.

[0040] Reference Figure 5 A conical convex portion 29 is provided in the semicircular groove 8, the semicircular groove 8 is wrapped around the surface of the steel bar, and the convex portion 29 is embedded between adjacent lines on the surface of the steel bar; the semicircle is wrapped around the surface of the steel bar, and the convex portion 29 is embedded between adjacent lines on the surface of the steel bar, thereby improving the wrapping stability of the clamping plate 7 on the steel bar and preventing the steel bar from warping up and detaching from the semicircular groove 8 during welding.

[0041] Embodiment 2:

[0042] Reference Fig. 9 , compared with Example 1, as another implementation of the present invention, the limiting groove 25 is connected to the part where the push rod 27 passes through the L-shaped rod 5, and the end of the limiting rod 24 extends vertically to the part where the push rod 27 passes through the L-shaped rod 5, and is vertically fixed to the push rod 27; the limiting rod 24 and the push rod 27 are fixed together, and the clamping plate 7 and the threaded cylinder 21 that are farther away from the positioning hole 23 are set as a whole, and move synchronously, thereby improving the stability of the positioning and clamping mechanism itself.

[0043] Working principle: By designing an efficient cap beam frame piece welding positioning device, the production of the cap beam frame piece 1 can be accelerated; each steel bar of the cap beam frame piece 1 is placed on the operating table 2 according to the drawing, and the points to be welded between the steel bars are placed at the notch positions of the through grooves 3. After placement, drive the No. 1 hydraulic cylinder to push up the L-shaped rod 5, and at the same time, two clamping plates 7 are placed on both sides of the points to be welded. After the movement and lifting are completed, the control motor 10 drives the screw rod 9 to rotate, and the two clamping plates 7 are arranged opposite to the screw rod 9 in rotation. After the screw rod 9 rotates, the two clamping plates 7 approach each other, and the semicircular groove 8 at the upper end of the clamping plate 7 is gradually squeezed on the surface of the steel bar. After the motor 10 rotates, the clamping plate 7 tightens the steel bar The two clamping plates 7 are fixed together, and the welding robot welds the welding points at this time; after the welding is completed, the driving motor 10 is reversed, and the two clamping plates 7 move away from each other and reset, no longer squeezing the steel bars, and then the No. 1 hydraulic cylinder also drives the L-shaped rod 5 to move down and reset. At this time, the welded cap beam skeleton piece 1 is placed on the operating table 2; the welding positioning device, through the position of the through groove 3, enables the steel bars to be placed according to the position points of the through groove 3, which plays a positioning role. At the same time, the setting of the positioning clamping mechanism can simultaneously clamp and fix the steel bars, and simultaneously release the steel bars. Compared with operating each fastening structure one by one, the setting of the positioning clamping mechanism can effectively improve the positioning and fixation of the cap beam skeleton piece 1;

[0044] A positioning piece 11 is provided. When each steel bar is placed on the operating table 2, the positioning piece 11 can constrain the position of the steel bar, so that the welding point between two adjacent steel bars can be accurately placed at the notch position of the through groove 3, ensuring that the clamping plate 7 that rises later can effectively wrap around the surface of the steel coil, improving the welding accuracy between the steel bars, and helping to ensure the welding quality of the cap beam frame piece 1;

[0045] The cap beam skeleton piece 1 is made of steel coils. After the welding of the cap beam skeleton piece 1 is completed, since each steel coil is laid flat on the operating table 2, it is inconvenient to grab and lift the cap beam skeleton piece 1 when the cap beam skeleton piece 1 is moved down from the operating table 2. For this reason, the No. 2 cylinder 14 and the arc plate 13 are provided to cooperate. After the welding of the cap beam skeleton piece 1 is completed, the clamping plate 7 moves down and retracts into the through groove 3, and then the No. 2 cylinder 14 is driven, and the arc plate 13 pushes up the cap beam skeleton piece 1, and the cap beam skeleton piece 1 is suspended on the surface of the operating table 2. At this time, it is convenient for the operator to grab and drop the cap beam skeleton piece 1. Even if it is not manually grabbed and dropped, it can be grabbed and dropped by a mechanical arm. The end of the mechanical arm imitates the claws of human hands, which can effectively grab the steel bars of the cap beam skeleton piece 1, and realize fast and stable grabbing and dropping.

[0046] The outer steel bars of the cap beam skeleton piece 1 are formed by bending a steel bar, and the inside is formed by splicing a plurality of supporting steel bars. When the supporting steel bars inside the cap beam skeleton piece 1 are placed, in order to ensure the stability of the supporting steel bars, a magnetic plate 15 is set to pre-adsorb the support on the operating table 2 to prevent the adjacent supporting steel bars from disturbing the placed supporting steel bars when they are placed, causing the position of the supporting steel bars to shift, thereby affecting the welding quality of the cap beam skeleton piece 1;

[0047] When the cap beam skeleton piece 1 is welded, welding smoke will be generated. According to the preliminary compilation and reference of the list of carcinogens published by the International Agency for Research on Cancer of the World Health Organization, welding smoke is in the list of Class I carcinogens. Welding smoke has a chronic hazard to the workers in the production plant. Therefore, a dust extraction unit is set on one side of the operating table 2, and the pipe body 18 is connected to the external negative pressure pump. During welding, the generated smoke is extracted by the adsorption pipe 17 into the right-angle pipe 16, and then extracted from the pipe body 18 to ensure the health of the workers in the plant; and the extracted smoke is filtered and discharged into the environment without harm;

[0048] When the clamping plate 7 does not rise to the notch position of the through groove 3, the blocking rod 19 is under the elastic force of the spring, and the solid surface of the blocking rod 19 blocks the air inlet port of the tube body 18. When the No. 1 hydraulic cylinder pushes the clamping plate 7 up to the notch position of the through groove 3, the motor 10 rises and squeezes the blocking rod 19 upward. At this time, the lower end of the channel 20 of the blocking rod 19 is connected with the tube body 18. At this time, the tube body 18 is connected with the right-angle tube 16 through the channel 20. The smoke generated by welding is sucked into the right-angle tube 16 and flows into the tube body 18 along the channel 20 to realize the extraction of smoke. The setting of the blocking rod 19 allows the negative pressure pump to be in a working state all the time, instead of being started and stopped intermittently. Intermittent start and stop will cause damage to the negative pressure pump and reduce its service life.

[0049] When the clamping plate 7 moves to the notch position of the through slot 3, the motor 10 is started, the screw rod 9 rotates, and the clamping plate 7 clamps and fixes the steel bar together. At the same time, the screw rod 9 rotates, so that the threaded cylinder 21 moves toward the positioning hole 23, and then the positioning rod 22 on the threaded cylinder 21 is gradually inserted into the positioning hole 23. At this time, the position of the positioning clamping mechanism is stabilized in the through slot 3, thereby improving the stability of the positioning clamping mechanism in the through slot 3, thereby ensuring the clamping stability of the clamping plate 7 on the steel bar;

[0050] When the two clamping plates 7 are close to each other, the clamping plate 7 that is farther away from the positioning hole 23 pushes the push rod 27 to gradually insert into the fixing hole 28. At this time, the position stability of the positioning clamping mechanism is further consolidated, and the stability of the positioning clamping mechanism in the through groove 3 is improved, thereby ensuring the clamping stability of the clamping plate 7 on the steel bar; the semicircle is wrapped around the surface of the steel bar, and at the same time, the convex part 29 is embedded between the adjacent lines on the surface of the steel bar, thereby improving the wrapping stability of the clamping plate 7 on the steel bar, and preventing the steel bar from tilting and detaching from the semicircular groove 8 during welding.

[0051] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A cap beam frame piece welding positioning device, characterized in that: The invention comprises an operating table (2), on which a cap beam frame piece (1) to be welded is placed; a through groove (3) is provided at a position on the operating table (2) corresponding to a welding point on the cap beam frame piece (1), and a positioning clamping mechanism is provided in the through groove (3); the positioning clamping mechanism comprises a No. 1 cylinder (4), the No. 1 cylinder (4) is fixedly connected to the bottom of the operating table (2) through a connecting plate (41), the output end of the No. 1 cylinder (4) points to the through groove (3), and is fixedly connected to an L-shaped rod (5), a guide groove (6) is provided on the horizontal part of the L-shaped rod (5), a clamping plate (7) is symmetrically slidably connected in the guide groove (6), a semicircular groove (8) is provided on the upper end of the clamping plate (7), a screw rod (9) is drivingly connected on the lower half side wall of the clamping plate (7), the end of the screw rod (9) is fixedly connected to the output end of a motor (10), and the motor (10) is horizontally fixedly connected to the vertical end of the L-shaped rod (5).

2. A cap beam frame piece welding positioning device according to claim 1, characterized in that: A positioning piece (11) is provided on the outer side of the outer reinforcement of the cap beam skeleton piece (1), and a positioning piece (11) is also provided on the end of the inner ring support reinforcement of the cap beam skeleton piece (1). One end of the positioning piece (11) is fixedly connected to the operating table (2), and the other end of the positioning piece (11) is bent outwardly in an inclined manner.

3. A cap beam frame piece welding positioning device according to claim 2, characterized in that: The operating table (2) is also provided with a plurality of through holes (12), the through holes (12) being arranged to penetrate the operating table (2), the through holes (12) being located below the peripheral steel bars of the cap beam frame piece (1), an arc plate (13) being slidably connected in the through holes (12), the inner concave surface of the arc plate (13) being opposite to the peripheral steel bars of the cap beam frame piece (1), a No. 2 cylinder (14) being fixedly connected to the lower surface of the arc plate (13), and the No. 2 cylinder (14) being fixedly connected to the lower surface of the operating table (2).

4. A cap beam frame piece welding positioning device according to claim 3, characterized in that: The operating table (2) is provided with a plurality of grooves, the grooves being located below the middle of the inner ring supporting steel bars of the cap beam skeleton plate (1), and a magnetic plate (15) being provided in the grooves, and the magnetic plate (15) being flush with the surface of the operating table (2).

5. A cap beam frame piece welding positioning device according to claim 1, characterized in that: A dust extraction unit is provided on one side of the through groove (3); the dust extraction unit comprises a right-angle tube (16) and an adsorption tube (17); one end of the right-angle tube (16) is fixedly connected to the operating table (2) and is connected to a tube body (18) provided on the side wall of the operating table (2); the other end of the right-angle tube (16) is connected to the adsorption tube (17); a suction port is provided on one side of the adsorption tube (17), and the suction port is inclined toward a welding point on the cap beam frame sheet (1).

6. A cap beam frame piece welding positioning device according to claim 5, characterized in that: A blocking rod (19) is slidably connected to one end of the right-angle tube (16), an L-shaped channel (20) is provided in the blocking rod (19), an upper end of the channel (20) is connected to the right-angle tube (16), a horizontal end of the channel (20) penetrates to the middle side of the blocking rod (19) and is arranged opposite to the tube body (18), the lower end of the blocking rod (19) slides through the through groove (3) and is connected to the through groove (3) through a spring, and the housing of the motor (10) is pressed against the lower end of the blocking rod (19).

7. A cap beam frame piece welding positioning device according to claim 1, characterized in that: The end of the screw rod (9) is rotatably connected to a threaded barrel (21), the end of the threaded barrel (21) is fixedly connected to a positioning rod (22), a push rod (27) is inserted into a positioning hole (23) provided on the side wall of the through groove (3), and limiting rods (24) are symmetrically fixedly connected to both sides of the threaded barrel (21), and the ends of the limiting rods (24) are slidably connected to limiting grooves (25) symmetrically provided on the horizontal plane of the L-shaped rod (5).

8. A cap beam frame piece welding positioning device according to claim 7, characterized in that: A sliding hole (26) is provided at the lower end of the clamping plate (7) near the positioning hole (23), and a push rod (27) is slidably connected in the sliding hole (26). One end of the push rod (27) is vertically fixed to the lower end of the clamping plate (7) away from the positioning hole (23), and the other end of the push rod (27) passes through the guide groove (6) and extends into a fixing hole (28) provided on the inner side wall of the through groove (3), and the fixing hole (28) is located below the positioning hole (23).

9. A cap beam frame piece welding positioning device according to claim 1, characterized in that: A conical convex portion (29) is arranged in the semicircular groove (8), the semicircular groove (8) is wrapped around the surface of the steel bar, and the convex portion (29) is embedded between adjacent lines on the surface of the steel bar.

10. A cap beam frame piece welding positioning device according to claim 7, characterized in that: The limiting groove (25) is connected to the portion where the top rod (27) passes through the L-shaped rod (5), and the end of the limiting rod (24) vertically extends to the portion where the top rod (27) passes through the L-shaped rod (5) and is vertically fixed to the top rod (27).

Images