Automatic assembly device for steel bar trusses of floor deck

Abstract

The present invention relates to the technical field of steel bar truss assembly, specifically to an automatic assembly device for a floor deck steel bar truss, including an assembly support component, a clamping component and a centering component. The assembly support component includes an assembly table and a profile frame. The assembly table is fixedly installed on the top of the profile frame. The top left end and the top right end of the assembly table are both provided with a plurality of slide grooves distributed front and back. The side of the assembly table is provided with a torsion component. The transverse steel bar is clamped and fixed by two grooves that are retracted front and back to prevent it from moving. Since the transverse steel bar is pressed on the top of the longitudinal steel bar, the longitudinal steel bar is limited. Before the two grooves clamp the transverse steel bar, the position of the transverse steel bar is centered by two centering pushers of the centering component, thereby ensuring the regularity of the floor deck steel bar truss after assembly.

Description

Technical Field

[0001] The invention relates to the technical field of steel bar truss assembly, in particular to an automatic assembly device for steel bar trusses of floor decks. Background Art

[0002] The steel truss of the floor deck is a truss made of steel bars as the upper chord, lower chord and web, connected by resistance spot welding. It is called a steel truss, which is conducive to uniform spacing of steel bars and uniform thickness of concrete cover, and improves the construction quality of the floor. The assembled steel truss floor deck can significantly reduce the amount of steel bar binding on site, speed up the construction progress, increase construction safety assurance, and achieve civilized construction;

[0003] According to a Chinese patent with application publication number CN105750861A, an automatic assembly device for steel trusses of a floor deck is disclosed. By installing multiple groups of evenly arranged truss positioning and clamping components on a work frame, the truss positioning and clamping components include two symmetrically arranged clamping arms hinged on the work frame, the lower end of the clamping plate is connected to a cylinder, and the upper end is provided with a mounting clamp. Multiple groups of steel trusses can be clamped to the floor deck at one time, with high work efficiency and high assembly quality. However, the automatic assembly device for steel trusses of a floor deck lacks an automatic calibration effect on the steel bars, that is, it is impossible to ensure that the steel bars are in a centered position, resulting in poor regularity of the assembled steel trusses of the floor deck. For this reason, we propose an automatic assembly device for steel trusses of a floor deck to solve the above technical problems. Summary of the invention

[0004] The present invention provides the following technical solutions: an automatic assembly device for a floor deck steel bar truss, comprising an assembly support assembly, a clamping assembly and a centering assembly, wherein the assembly support assembly comprises an assembly platform and a profile frame, wherein the assembly platform is fixedly mounted on the top of the profile frame, wherein the top left end and the top right end of the assembly platform are both provided with a plurality of slide grooves distributed front and back, and a torsion assembly is provided on the side of the assembly platform;

[0005] The clamping assembly includes a clamping platform fixedly mounted on the top of the assembly table, the number of the clamping platforms is multiple, the interior of the clamping platform is connected with two clamping jaws facing each other in a front-to-back direction, the two clamping jaws are provided with grooves on the opposite surfaces, the bottoms of the two clamping jaws are rotatably mounted with guide wheels, the bottom of the assembly table is rotatably mounted with multiple front-to-back distributed adjustment transverse shafts, the outer wall of the adjustment transverse shaft is rotatably mounted with multiple left-to-right distributed cams, the cam is located between the front and rear two guide wheels, the side of the cam is provided with a separation groove, the inner wall of the separation groove is fixedly mounted with an active shifting block, and the outer wall of the adjustment transverse shaft is fixedly mounted with a driven shifting block;

[0006] The centering component includes a push block slidably installed inside a slide groove, a centering push head is fixedly installed on the top side of the push block, a movable bushing is fixedly installed on the bottom of the push block, a path pin is fixedly installed on the top wall of the movable bushing, the outer wall of the adjusting horizontal axis is sleeved with two push-pull sleeves distributed on the left and right, the outer wall of the push-pull sleeve is provided with a path groove, and the path pin is slidably located inside the path groove.

[0007] As a preferred solution of the present invention, the plurality of clamps are arranged vertically and horizontally, the distance between two adjacent clamps in the horizontal direction is equal, and the distance between two adjacent clamps in the vertical direction is equal, a plurality of vertically and horizontally distributed make way grooves are opened through the top of the assembly table, the clamps movably penetrate the make way grooves and extend to the bottom periphery of the assembly table.

[0008] As a preferred solution of the present invention, the adjusting horizontal axis is located at the bottom of the clamping table, and both ends of the adjusting horizontal axis are installed at the bottom of the assembly table through the rotational cooperation of the bearing and the bearing seat.

[0009] As a preferred solution of the present invention, the driven block is located inside the separation groove, and the outer wall of the driven block is slidably connected to the inner wall of the separation groove, and the angle between the driven block and the separation groove is 70 degrees.

[0010] As a preferred solution of the present invention, a V-shaped spring is fixedly installed between the bottoms of the front and rear clamping jaws, and the V-shaped spring is located on the tops of the two derivation wheels.

[0011] As a preferred solution of the present invention, the centering component also includes two key slots opened on the outer wall of the adjusting horizontal axis, the two key slots are located on the left and right parts of the outer wall of the adjusting horizontal axis, the outer wall of the path slot is provided with a screw hole, the internal thread of the screw hole is screwed with a positioning bolt, and the end of the positioning bolt abuts against the slot wall of the key slot.

[0012] As a preferred solution of the present invention, the torsion assembly includes a positioning piece fixedly installed on the side of the assembly support assembly, and two keyholes distributed up and down are provided on a side of the positioning piece close to the assembly table, and the positioning piece is located on the periphery of the adjusting horizontal axis, and a turntable is fixedly installed on the end of the adjusting horizontal axis, and two horizontally arranged lock grooves are provided on a side of the turntable close to the positioning piece, and lock tongues are slidably installed inside the two lock grooves, and the two lock tongues are distributed in a circular array about the center of the turntable, and the specifications of the lock tongues are compatible with the specifications of the keyholes, and a reset spring is fixedly installed between the side of the lock tongue away from the positioning piece and the inner end surface of the lock groove, and a pry tube is fixedly installed on the upper part of the outer wall of the turntable.

[0013] As a preferred solution of the present invention, a pull rod is fixedly installed on one side of the two locking tongues away from the positioning plate. The pull rod movably passes through the interior of the turntable and extends to the outside thereof. The pull rod is located inside the reset spring, and a pull ring is fixedly installed on the ends of the two pull rods.

[0014] As a preferred solution of the present invention, a load-bearing frame is fixedly mounted on the left side and the right side of the clamping platform, and the height of the load-bearing frame matches the height position of the groove.

[0015] As a preferred solution of the present invention, the front and rear parts of the assembly table are movably connected with multiple U-shaped sockets distributed on the left and right, the U-shaped sockets are located between two laterally adjacent clamping tables, the U-shaped sockets are locked to the assembly table by fastening bolts, and a support plate is fixedly installed on the top of the U-shaped socket, and a positioning groove is provided on the top of the support plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the present invention, the transverse reinforcement is clamped and fixed by two grooves that are closed together in front and back to prevent it from moving. Since the transverse reinforcement is pressed on the top of the longitudinal reinforcement, the longitudinal reinforcement is limited. Before the two grooves clamp the transverse reinforcement, the position of the transverse reinforcement is calibrated by the two centering pushers of the centering assembly, thereby ensuring the regularity of the floor deck steel truss after assembly.

[0018] 2. In the present invention, since the end section of the path groove in the centering component is arranged in a cross-circular direction, that is, when the two centering push heads collide with both ends of the transverse steel bars, the path pin just slides to the inside of the end section area of ​​the path groove. In other words, the push-pull sleeve continues to rotate and will not move the path pin to drive the push-pull sleeve to continue moving, thereby avoiding pressure on the transverse end steel bars to cause them to bend and deform.

[0019] 3. In the present invention, by loosening the positioning bolt, the push-pull sleeve can be slid left and right along the outer wall of the adjusting horizontal axis, thereby driving the push block together with the centering push head to move through the connecting action of the movable bushing, and adjusting the distance between the left and right centering push heads to adapt to the centering requirements of transverse steel bars of different lengths. It has high flexibility, and after the position adjustment of the left and right push-pull sleeves is completed, the positioning bolts are tightened again to prevent the adjusted push-pull sleeves from moving again.

[0020] 4. In the present invention, the rotation of the turntable also drives the two lock tongues to rotate together through the two lock grooves until the two lock tongues rotate and overlap with the positions of the two keyholes. The elastic force of the two return springs in a compressed state pushes the two lock tongues along the inner walls of the two lock grooves into the interiors of the two keyholes, thereby limiting the torsion of the turntable, that is, limiting the torsion of the adjusting horizontal axis, avoiding the rebound force of the V-shaped spring to cause the bottom of the two clamping jaws to shrink and cause the cam to rotate in the opposite direction, so that the front and rear grooves maintain the clamping force on the transverse steel bars.

[0021] 5. In the present invention, by pulling the pull ring and the connection of the pull rod, the lock tongue is driven to withdraw from the inside of the keyhole, causing the reset spring to be compressed again. After the lock tongue withdraws from the inside of the keyhole, the torque limiting effect between the turntable and the positioning plate ends. At this time, by inserting the crowbar into the inside of the pry tube and rotating the turntable in the opposite direction, the adjusting horizontal axis is driven to rotate together. The rebound force of the V-shaped spring is used to bring the bottom of the front and rear jaws together, so that the tops of the two jaws open to end the clamping effect on the transverse steel bars, making it convenient to remove the assembled floor deck steel truss from the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 For the present invention Figure 1 Schematic diagram of the local structure;

[0024] Figure 3 For the present invention Figure 2 Schematic diagram of the local structure;

[0025] Figure 4 It is a schematic diagram of the structure of the clamping assembly in the present invention;

[0026] Figure 5 It is a detailed structural schematic diagram of the clamping assembly in the present invention;

[0027] Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure of part A;

[0028] Figure 7 It is a detailed structural diagram of the centering component of the present invention;

[0029] Figure 8 For the present invention Figure 7 A schematic diagram of the enlarged structure of part B;

[0030] Fig. 9 It is a detailed structural schematic diagram of the push-pull sleeve in the present invention;

[0031] Fig.10 It is a schematic diagram of the cross-sectional structure of the turntable in the present invention;

[0032] Fig.11 For the present invention Fig.10 Schematic diagram of the enlarged structure of part C;

[0033] Fig.12 It is a structural schematic diagram of the assembly platform in the present invention.

[0034] In the figure: 100, assembly support assembly; 101, assembly table; 102, profile frame; 103, slide; 104, clearance groove; 200, clamping assembly; 201, clamping table; 202, clamping claw; 203, groove; 204, guide wheel; 205, adjustment horizontal axis; 206, cam; 207, separation groove; 208, active shift block; 209, driven shift block; 2010, V-shaped spring; 300, centering assembly; 301, push block; 302, centering push head; 304, movable lining Sleeve; 305, path pin; 306, push-pull sleeve; 307, path slot; 308, key slot; 309, screw hole; 3010, positioning bolt; 400, torsion assembly; 401, positioning plate; 402, keyhole; 403, turntable; 404, lock slot; 405, lock tongue; 406, pull rod; 407, return spring; 408, pull ring; 409, pry tube; 4010, V-shaped spring; 500, load-bearing frame; 600, U-shaped holder; 601, support plate; 602, positioning slot. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figure 1-Figure 12 The technical solution provided by the present invention specifically includes the following embodiments:

[0037] Embodiment 1: An automatic assembly device for a floor deck steel bar truss comprises an assembly support assembly 100, a clamping assembly 200 and a centering assembly 300. The assembly support assembly 100 comprises an assembly platform 101 and a profile frame 102. The assembly platform 101 is fixedly mounted on the top of the profile frame 102. A plurality of slide grooves 103 distributed front and back are provided at the top left end and the top right end of the assembly platform 101. A torsion assembly 400 is provided on the side of the assembly platform 101.

[0038] The clamping assembly 200 includes a clamping platform 201 fixedly mounted on the top of the assembly platform 101. There are multiple clamping platforms 201. Two clamping jaws 202 are connected to the inside of the clamping platform 201 in a front-to-back direction. Grooves 203 are provided on the opposite surfaces of the two clamping jaws 202. Guide wheels 204 are rotatably installed on the bottom of the two clamping jaws 202. Multiple front-to-back distributed adjusting transverse shafts 205 are rotatably installed on the bottom of the assembly platform 101. Multiple left-to-right distributed cams 206 are rotatably installed on the outer wall of the adjusting transverse shaft 205. The cam 206 is located between the front and rear guide wheels 204. A separation groove 207 is provided on the side of the cam 206. An active shifting block 208 is fixedly installed on the inner wall of the separation groove 207. A driven shifting block 209 is fixedly installed on the outer wall of the adjusting transverse shaft 205. Multiple clamping platforms 201 are arranged vertically and horizontally, and two laterally adjacent ones are arranged horizontally. The distances between the clamping platforms 201 are equal, and the distances between the two clamping platforms 201 adjacent to each other in the longitudinal direction are equal. A plurality of longitudinally and transversely distributed clearance grooves 104 are provided through the top of the assembly platform 101. The clamping jaws 202 movably penetrate the clearance grooves 104 and extend to the periphery of the bottom of the assembly platform 101. The adjusting horizontal axis 205 is located at the bottom of the clamping platform 201, and the two ends of the adjusting horizontal axis 205 are installed at the bottom of the assembly platform 101 through the rotational cooperation of the bearing and the bearing seat. The driven shift block 209 is located inside the separation groove 207, and the outer wall of the driven shift block 209 is slidably connected to the inner wall of the separation groove 207. The angle between the driven shift block 209 and the separation groove 207 is 70 degrees. A V-shaped spring 2010 is fixedly installed between the bottoms of the front and rear clamping jaws 202, and the V-shaped spring 2010 is located at the tops of the two derivation wheels 204.

[0039] The left and right sides of the clamping platform 201 are fixedly installed with a load-bearing frame 500, the height of the load-bearing frame 500 matches the height position of the groove 203, the front and rear of the assembly platform 101 are movably connected with a plurality of U-shaped clamping seats 600 distributed on the left and right, the U-shaped clamping seat 600 is located between two laterally adjacent clamping platforms 201, the U-shaped clamping seat 600 is locked with the assembly platform 101 by fastening bolts, and a support sheet 601 is fixedly installed on the top of the U-shaped clamping seat 600, and a positioning groove 602 is opened on the top of the support sheet 601;

[0040] Specifically, in this embodiment, firstly, according to the size of the floor deck steel truss to be assembled, multiple assembly support components 100 are spliced ​​together by bolts (such as the attached Figure 1As shown), during assembly, the worker first places the longitudinal steel bars inside the positioning grooves 602 opened on the tops of the multiple support plates 601 in the front-to-back direction. Due to the limiting effect of the positioning grooves 602 on the steel bars, the steel bars placed inside the positioning grooves 602 will not easily move left and right. Then the worker places the transverse steel bars on the tops of the multiple load-bearing frames 500 distributed laterally, so that the transverse steel bars are pressed on the upper part of the longitudinal steel bars. It should be noted that the top of the load-bearing frame 500 in the present device is an arc-shaped concave setting, so that the steel bars placed on the top of the load-bearing frame 500 are not easy to move forward and backward, thereby preliminarily laying the transverse steel bars and the longitudinal steel bars on the device, and driving the adjustment horizontal axis 205 to rotate through the torsion assembly 400, The rotation of the adjusting horizontal shaft 205 drives the connected driven block 209 to rotate together, so that the driven block 209 gradually approaches the active block 208 until they abut against each other, so that under the abutment of the driven block 209 and the active block 208, the adjusting horizontal shaft 205 drives the cam 206 to rotate, and the rotation of the cam 206 pushes the front and rear guide wheels 204 toward the periphery, causing the tops of the two clamping jaws 202 and the two grooves 203 to shrink toward the middle, so that the V-shaped spring 2010 opens and undergoes elastic deformation. At the same time, the two grooves 203 that shrink front and back clamp the transverse steel bars to prevent them from moving, and because the transverse steel bars are pressed on the tops of the longitudinal steel bars, the longitudinal steel bars are limited.

[0041] Embodiment 2: The centering component 300 includes a push block 301 slidably mounted inside the slide groove 103, a centering push head 302 is fixedly mounted on the top side of the push block 301, a movable bushing 304 is fixedly mounted on the bottom of the push block 301, a path pin 305 is fixedly mounted on the top wall of the movable bushing 304, the outer wall of the adjusting horizontal axis 205 is sleeved with two push-pull sleeves 306 distributed on the left and right, the outer wall of the push-pull sleeve 306 is provided with a path groove 307, the path pin 305 is slidably located inside the path groove 307, the centering component 300 also includes two key grooves 308 provided on the outer wall of the adjusting horizontal axis 205, the two key grooves 308 are located on the left and right parts of the outer wall of the adjusting horizontal axis 205, the outer wall of the path groove 307 is provided with a screw hole 309, the inner thread of the screw hole 309 is screwed with a positioning bolt 3010, and the end of the positioning bolt 3010 abuts against the groove wall of the key groove 308;

[0042] Specifically, the rotation of the adjusting horizontal shaft 205 will drive the two push-pull sleeves 306 installed on the outer wall thereof to rotate together. Since the push-pull sleeve 306 is positioned by the positioning bolt 3010 and the keyway 308, there will be no relative torsion between the adjusting horizontal shaft 205 and the push-pull sleeve 306, further ensuring that the push-pull sleeve 306 has a good rotation effect. The rotation of the push-pull sleeve 306 further drives the path groove 307 to rotate, so that the path pin sliding inside the path groove 307 305 slides along the path of the path groove 307. It should be noted that the initial section of the path groove 307 is obliquely opened on the outer wall of the push-pull sleeve 306. That is to say, at the initial stage of the rotation of the push-pull sleeve 306, the path pin 305 moves along the initial section of the path groove 307, driving the movable bushing 304 to move along the outer wall of the push-pull sleeve 306 away from the positioning piece 401. The movement of the movable bushing 304 drives the centering push head 302 to move together through the connection effect of the flat push block 301, so that the centering push head 30 2 gradually approaches the end of the transverse steel bar, and because the left and right centering pushers 302 are symmetrically distributed, the left and right centering pushers 302 move in opposite directions at the same speed. If the transverse steel bar is not placed in the center, the centering pusher 302 closer to the end of the transverse steel bar will first collide with the end of the transverse steel bar, and as the centering pusher 302 moves, the transverse steel bar is pushed toward the other centering pusher 302 until both centering pushers 302 are in contact with the end of the transverse steel bar. The transverse reinforcement has been pushed to the center position, so as to ensure the regularity of the floor decking reinforcement truss after assembly, and the end section of the path groove 307 is arranged in a cross-circular direction, that is, when the two centering push heads 302 are in contact with both ends of the transverse reinforcement, the path pin 305 just slides to the inside of the end section area of ​​the path groove 307, that is, the push-pull sleeve 306 continues to rotate and will not move the path pin 305 to drive the push-pull sleeve 306 to continue to move, thereby avoiding pressure on the transverse end reinforcement to cause its bending and deformation.

[0043] It should be noted that when the adjusting horizontal shaft 205 rotates initially, it drives the driven block 209 to rotate together, so that the driven block 209 gradually approaches the active block 208. When the path pin 305 slides into the final position of the path groove 307, the driven block 209 just abuts against the active block 208. Therefore, under the abutment between the driven block 209 and the active block 208, the adjusting horizontal shaft 205 drives the cam 206 to rotate. The rotation of the cam 206 pushes the front and rear guide wheels 204 toward the periphery, causing the tops of the two clamping jaws 202 and the two grooves 203 to shrink toward the middle, thereby ensuring that the two clamping jaws 202 The transverse steel bars will not be clamped prematurely, which makes it easier to adjust the center position of the transverse steel bars. At the same time, by loosening the positioning bolt 3010, the push-pull sleeve 306 can be slid left and right along the outer wall of the adjustment horizontal axis 205, thereby driving the push block 301 together with the centering push head 302 to move through the connection of the movable bushing 304, and adjusting the distance between the left and right centering push heads 302 to adapt to the centering requirements of transverse steel bars of different lengths. It has high flexibility, and after the position adjustment of the left and right push-pull sleeves 306 is completed, tighten the positioning bolt 3010 again to prevent the adjusted push-pull sleeves 306 from moving again.

[0044] Embodiment 3: The torsion assembly 400 includes a positioning piece 401 fixedly mounted on the side of the assembly support assembly 100, and a side of the positioning piece 401 close to the assembly platform 101 is provided with two keyholes 402 distributed up and down, and the positioning piece 401 is located at the periphery of the adjustment horizontal axis 205, and a rotating disk 403 is fixedly mounted at the end of the adjustment horizontal axis 205, and a side of the rotating disk 403 close to the positioning piece 401 is provided with two horizontally arranged locking grooves 404, and the insides of the two locking grooves 404 are both slidably installed with locking tongues 405, and the two locking tongues 405 are circumferentially arranged about the center of the rotating disk 403. The lock tongue 405 is arranged in an array, and the specification of the lock tongue 405 matches that of the keyhole 402. A return spring 407 is fixedly installed between the side of the lock tongue 405 away from the positioning piece 401 and the inner end surface of the lock groove 404. A pry tube 409 is fixedly installed on the upper part of the outer wall of the rotating disk 403. A pull rod 406 is fixedly installed on the side of the two lock tongues 405 away from the positioning piece 401. The pull rod 406 movably passes through the interior of the rotating disk 403 and extends to the outside thereof. The pull rod 406 is located inside the return spring 407, and a pull ring 408 is fixedly installed on the ends of the two pull rods 406.

[0045] The present embodiment is specifically as follows: by inserting a crowbar into the inside of the pry tube 409, the turntable 403 is pried and rotated, and the rotation of the turntable 403 drives the adjusting horizontal shaft 205 and the cam 206 to rotate, thereby further achieving the clamping effect of the two clamping claws 202. The rotation of the turntable 403 also drives the two locking tongues 405 to rotate together through the two locking grooves 404, until the two locking tongues 405 rotate and overlap with the positions of the two keyholes 402, the elastic force of the two return springs 407 in a compressed state pushes the two locking tongues 405 along the inner walls of the two locking grooves 404 into the inside of the two keyholes 402, thereby limiting the torsion of the turntable 403, that is, limiting the torsion of the adjusting horizontal shaft 205, to prevent the rebound force of the V-shaped spring 2010 from acting on the bottom of the two clamping claws 202 to shrink and cause the cam 206 to rotate in the opposite direction, thereby making the front and rear grooves 203 maintains the clamping force on the transverse steel bars. When the floor deck steel bar truss is assembled, the worker pulls the pull ring 408 away from the turntable 403. The pull ring 408 drives the locking tongue 405 to withdraw from the inside of the keyhole 402 through the connection of the pull rod 406, causing the reset spring 407 to be compressed again. After the locking tongue 405 withdraws from the inside of the keyhole 402, the torque limiting effect between the turntable 403 and the positioning piece 401 ends. At this time, the turntable 403 is rotated in the opposite direction by inserting the crowbar into the inside of the pry tube 409 to drive the adjusting horizontal axis 205 to rotate together. The rebound force of the V-shaped spring 2010 is used to bring the bottom of the front and rear jaws 202 together, so that the tops of the two jaws 202 open to end the clamping effect on the transverse steel bars, making it convenient to remove the assembled floor deck steel bar truss from the device.

[0046] When the automatic assembly device for floor deck steel trusses of the present invention is working, firstly, according to the size of the floor deck steel trusses to be assembled, multiple assembly support components 100 are spliced ​​together by bolts (such as the attached Figure 1 As shown), during assembly, the worker first places the longitudinal steel bars inside the positioning grooves 602 opened on the tops of the multiple support plates 601 in the front-to-back direction. Due to the limiting effect of the positioning grooves 602 on the steel bars, the steel bars placed inside the positioning grooves 602 will not easily move left and right. Then the worker places the transverse steel bars on the tops of the multiple load-bearing frames 500 distributed laterally, so that the transverse steel bars are pressed on the upper part of the longitudinal steel bars. It should be noted that the top of the load-bearing frame 500 in the present device is an arc-shaped concave setting, so that the steel bars placed on the top of the load-bearing frame 500 are not easy to move forward and backward, thereby preliminarily laying the transverse steel bars and the longitudinal steel bars on the device;

[0047] Next, by inserting the crowbar into the inside of the pry tube 409, the prying turntable 403 rotates, and the rotation of the turntable 403 drives the adjusting horizontal shaft 205 and the two push-pull sleeves 306 installed on the outer wall of the adjusting horizontal shaft 205 to rotate together. Since the push-pull sleeve 306 is positioned by the positioning bolt 3010 and the keyway 308, there is no relative torsion between the adjusting horizontal shaft 205 and the push-pull sleeve 306, which further ensures that the push-pull sleeve 306 has a good rotation effect, and the rotation of the push-pull sleeve 306 further drives the path groove 307 rotates, so that the path pin 305 slidingly located inside the path groove 307 slides along the path opened by the path groove 307. It should be noted that the initial section of the path groove 307 is obliquely opened on the outer wall of the push-pull sleeve 306. That is to say, at the initial stage of the rotation of the push-pull sleeve 306, the path pin 305 moves along the initial section of the path groove 307, driving the movable bushing 304 to move along the outer wall of the push-pull sleeve 306 away from the positioning piece 401. The movement of the movable bushing 304 drives the alignment through the connection of the flat push block 301 The push heads 302 move together, so that the center push head 302 gradually approaches the end of the transverse steel bar. Since the left and right center push heads 302 are symmetrically distributed, the left and right center push heads 302 move in opposite directions at the same speed. If the transverse steel bar is not placed in the center, the center push head 302 closer to the end of the transverse steel bar will first collide with the end of the transverse steel bar. As the center push head 302 moves, the transverse steel bar is pushed toward the other center push head 302 until the two center push heads 302 are in contact with the transverse steel bar. At this time, the end of the steel bar has pushed the transverse steel bar to the center position, so that the regularity of the floor deck steel bar truss after assembly can be ensured, and the end section of the path groove 307 is arranged in a cross-circumferential direction, that is, when the two centering push heads 302 are in contact with both ends of the transverse steel bar, the path pin 305 just slides to the inside of the end section area of ​​the path groove 307, that is, the push-pull sleeve 306 continues to rotate and will not move the path pin 305 to drive the push-pull sleeve 306 to continue to move, thereby avoiding the pressure on the transverse end steel bar causing its bending deformation;

[0048] At the same time, the rotation of the adjusting horizontal shaft 205 also drives the connected driven block 209 to rotate together, so that the driven block 209 gradually approaches the active block 208. When the path pin 305 slides into the end position of the path groove 307, the driven block 209 just abuts against the active block 208, so that under the abutment of the driven block 209 and the active block 208, the adjusting horizontal shaft 205 drives the cam 206 to rotate, and the rotation of the cam 206 pushes the front and rear guide wheels 204 toward the periphery, causing the tops of the two clamping claws 202 and the two grooves 203 to shrink toward the middle, so that the V-shaped spring 2010 opens and undergoes elastic deformation. At the same time, the two grooves 203 that shrink front and back clamp the adjusted centered transverse steel bar to prevent it from moving again. Since the transverse steel bar is pressed on the top of the longitudinal steel bar, the longitudinal steel bar is limited.

[0049] At the same time, the rotation of the turntable 403 also drives the two lock tongues 405 to rotate together through the two lock grooves 404, until the two lock tongues 405 rotate and overlap with the two keyholes 402, the elastic force of the two return springs 407 in the compressed state pushes the two lock tongues 405 along the inner walls of the two lock grooves 404 into the interior of the two keyholes 402, thereby limiting the torsion of the turntable 403, that is, limiting the torsion of the adjusting horizontal axis 205, to avoid the elastic force of the V-shaped spring 2010 causing the bottom of the two clamping claws 202 to shrink and cause the cam 206 to rotate in the opposite direction, so that the front and rear grooves 203 maintain the clamping force on the transverse steel bars. When the floor deck steel bar truss is assembled, the worker pulls the pull ring 4 08 is pulled in the direction away from the turntable 403, and the pull ring 408 drives the lock tongue 405 to withdraw from the inside of the keyhole 402 through the connection action of the pull rod 406, causing the reset spring 407 to be compressed again. After the lock tongue 405 withdraws from the inside of the keyhole 402, the torque limiting effect between the turntable 403 and the positioning piece 401 is terminated. At this time, by inserting the crowbar into the inside of the pry tube 409 and rotating the turntable 403 in the opposite direction, the adjusting horizontal axis 205 is driven to rotate together. The rebound force of the V-shaped spring 2010 is used to bring the bottom of the front and rear jaws 202 together toward the middle, so that the tops of the two jaws 202 open to end the clamping effect on the transverse steel bars, making it convenient to remove the assembled floor deck steel truss from the device.

[0050] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. An automatic assembly device for a floor deck steel bar truss, comprising an assembly support assembly (100), a clamping assembly (200) and a centering assembly (300), characterized in that: The assembly support assembly (100) comprises an assembly platform (101) and a profile frame (102); the assembly platform (101) is fixedly mounted on the top of the profile frame (102); a plurality of slide grooves (103) distributed frontward and rearward are provided at the top left end and the top right end of the assembly platform (101); and a torsion assembly (400) is provided on the side of the assembly platform (101); The clamping assembly (200) comprises a clamping platform (201) fixedly mounted on the top of the assembly platform (101), the clamping platforms (201) being provided in a plurality, two clamping jaws (202) being connected in a front-to-back direction inside the clamping platform (201), grooves (203) being provided on the opposite surfaces of the two clamping jaws (202), guide wheels (204) being rotatably mounted on the bottom of the two clamping jaws (202), a plurality of front-to-back distributed adjustment transverse shafts (205) being rotatably mounted on the bottom of the assembly platform (101), a plurality of left-to-right distributed cams (206) being rotatably mounted on the outer wall of the adjustment transverse shaft (205), the cam (206) being located between the front and rear guide wheels (204), a separation groove (207) being provided on the side of the cam (206), an active shifting block (208) being fixedly mounted on the inner wall of the separation groove (207), and a driven shifting block (209) being fixedly mounted on the outer wall of the adjustment transverse shaft (205); The centering component (300) comprises a push block (301) slidably mounted inside the slide groove (103), a push head (302) being fixedly mounted on the top side of the push block (301), a movable bushing (304) being fixedly mounted on the bottom of the push block (301), a path pin (305) being fixedly mounted on the top wall of the movable bushing (304), the outer wall of the adjusting horizontal axis (205) being sleeved with two push-pull sleeves (306) distributed on the left and right, the outer wall of the push-pull sleeve (306) being provided with a path groove (307), and the path pin (305) being slidably located inside the path groove (307); The torsion assembly (400) comprises a positioning piece (401) fixedly mounted on the side of the assembly support assembly (100); a side of the positioning piece (401) close to the assembly platform (101) is provided with two keyholes (402) distributed vertically; the positioning piece (401) is located at the periphery of the adjustment horizontal axis (205); a rotating disk (403) is fixedly mounted at the end of the adjustment horizontal axis (205); a side of the rotating disk (403) close to the positioning piece (401) is provided with two horizontally arranged locking grooves (404), a lock tongue (405) is slidably mounted inside the two lock grooves (404), the two lock tongues (405) are arranged in an array around the center of the rotating disk (403), the specifications of the lock tongue (405) are compatible with the specifications of the keyhole (402), a return spring (407) is fixedly mounted between a side of the lock tongue (405) away from the positioning piece (401) and the inner end surface of the lock groove (404), and a pry tube (409) is fixedly mounted on the upper part of the outer wall of the rotating disk (403).

2. The automatic assembly device for floor deck steel bar trusses according to claim 1 is characterized by: The plurality of clamping platforms (201) are arranged vertically and horizontally, the distance between two adjacent clamping platforms (201) in the horizontal direction is equal, and the distance between two adjacent clamping platforms (201) in the vertical direction is equal, a plurality of vertically and horizontally distributed clearance grooves (104) are provided through the top of the assembly platform (101), and the clamping claws (202) movably penetrate the clearance grooves (104) and extend to the bottom periphery of the assembly platform (101).

3. The automatic assembly device for floor deck steel bar trusses according to claim 2 is characterized in that: The adjusting transverse axis (205) is located at the bottom of the clamping platform (201), and two ends of the adjusting transverse axis (205) are mounted on the bottom of the assembly platform (101) through the rotational cooperation of bearings and bearing seats.

4. The automatic assembly device for floor deck steel bar trusses according to claim 3 is characterized by: The driven shift block (209) is located inside the separation groove (207), and the outer wall of the driven shift block (209) is slidably connected to the inner wall of the separation groove (207), and the angle between the driven shift block (209) and the separation groove (207) is 70 degrees.

5. The automatic assembly device for floor deck steel bar trusses according to claim 4 is characterized in that: A V-shaped spring (2010) is fixedly installed between the bottoms of the front and rear clamping jaws (202), and the V-shaped spring (2010) is located on the tops of the two guide wheels (204).

6. The automatic assembly device for floor deck steel bar trusses according to claim 5 is characterized by: The centering component (300) further includes two key slots (308) formed on the outer wall of the adjusting transverse axis (205), wherein the two key slots (308) are located on the left and right portions of the outer wall of the adjusting transverse axis (205), and a screw hole (309) is formed on the outer wall of the path slot (307), wherein a positioning bolt (3010) is screwed onto the inner thread of the screw hole (309), and an end of the positioning bolt (3010) abuts against the slot wall of the key slot (308).

7. The automatic assembly device for floor deck steel bar trusses according to claim 6 is characterized by: A pull rod (406) is fixedly installed on one side of the two locking tongues (405) away from the positioning piece (401). The pull rod (406) movably passes through the interior of the rotating disk (403) and extends to the outside thereof. The pull rod (406) is located inside the reset spring (407). A pull ring (408) is fixedly installed at the ends of the two pull rods (406).

8. The automatic assembly device for floor deck steel bar trusses according to claim 7 is characterized by: A load-bearing frame (500) is fixedly mounted on the left side and the right side of the clamping platform (201), and the height of the load-bearing frame (500) matches the height position of the groove (203).

9. The automatic assembly device for floor deck steel bar trusses according to claim 8, characterized in that: The front and rear parts of the assembly table (101) are movably connected with a plurality of U-shaped card seats (600) distributed on the left and right. The U-shaped card seat (600) is located between two laterally adjacent clamping tables (201). The U-shaped card seat (600) is locked with the assembly table (101) by fastening bolts. A support sheet (601) is fixedly installed on the top of the U-shaped card seat (600). A positioning groove (602) is provided on the top of the support sheet (601).

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