A rapid positioning and clamping device for building reinforcement

Abstract

The application relates to the technical field of clamping devices, in particular to a building steel bar rapid positioning and clamping device. The building steel bar rapid positioning and clamping device comprises a mounting pedestal, two oppositely arranged supporting seats are mounted on the mounting pedestal, and a positioning and clamping mechanism is arranged on the mounting pedestal. The positioning and clamping mechanism comprises an inner mounting block, a bottom clamping seat and first and second clamping seats oppositely arranged on the two sides of the bottom clamping seat. The variable-diameter clamping space and the telescopic driving structure can quickly adapt to steel bars of various specifications without replacing the modules, thereby significantly improving the universality and work efficiency. Meanwhile, the annular holding roller and the adjusting connecting rod are linked to automatically correct the steel bar deviation during the clamping process, forcibly ensure that the steel bar axis is coaxial with the processing reference, effectively solve the eccentricity and inclination problems, guarantee the machining precision of subsequent processes such as cutting, bending and welding, improve the component qualification rate, and meet the high-precision steel bar machining operation requirement.

Description

Technical Field

[0001] This invention relates to the field of clamping device technology, specifically a quick positioning and clamping device for building steel bars. Background Technology

[0002] During construction, before operations such as binding, welding, cutting, or bending steel bars, it is often necessary to temporarily fix the steel bars to ensure their accurate position and stable posture, and to prevent displacement, rotation, or collapse during operation. This ensures processing accuracy and avoids safety accidents caused by steel bar slippage.

[0003] However, the following methods are commonly used for positioning and clamping rebars on construction sites: First, manual gripping, which is labor-intensive and unstable, easily leading to hand fatigue and uneven clamping force, making the rebar prone to slippage or displacement; Second, clamping with a fixed bench vise, which, although providing greater clamping force, is bulky, inconvenient to move, and has a fixed jaw spacing, making it only suitable for rebars of a single specification. When dealing with rebars of different diameters, frequent jaw changes or adjustments with shims are required, making the operation cumbersome and inefficient; Third, simple U-shaped clips or C-shaped clamps are used for fixing. Although these clamps are simple in structure, they have limited clamping points and insufficient radial constraint on the rebar, making it difficult to ensure that the rebar axis is in the same center position as the processing reference surface. Especially during high-precision operations such as welding or cutting, even slight displacement of the rebar can lead to processing deviations and affect the quality of the components. Therefore, we propose a rapid positioning and clamping device for building rebars. Summary of the Invention

[0004] The purpose of this invention is to provide a quick positioning and clamping device for building steel bars to solve the problems mentioned in the background art.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] A quick positioning and clamping device for reinforcing steel bars in construction includes: a mounting platform, on which two opposing support seats are mounted, and a closing drive mechanism is mounted on the support seats; and further includes:

[0007] A positioning and clamping mechanism is disposed on the mounting base. The positioning and clamping mechanism includes an inner mounting block, a bottom clamping seat, and a first clamping seat and a second clamping seat disposed opposite to each other on both sides of the bottom clamping seat. The first clamping seat and the second clamping seat together with the bottom clamping seat form a variable diameter clamping space.

[0008] The enclosing mechanism is disposed on both sides of the support base and is connected to the positioning and clamping mechanism for driving the first clamping base and the second clamping base to move relative to the bottom clamping base, so as to adjust the positioning and clamping mechanism to accommodate and clamp steel bars of different diameters;

[0009] A gripping mechanism is installed inside the positioning and clamping mechanism, and works with the positioning and clamping mechanism to achieve radial limiting of the reinforcing bar and axial centering clamping;

[0010] An adjustment mechanism is connected between the mounting base and the positioning clamping mechanism, used to adjust the spatial position of the positioning clamping mechanism relative to the mounting base and to cooperate in achieving the clamping force of the gripping mechanism.

[0011] Preferably, the enclosing drive mechanism includes:

[0012] A drive motor is mounted on the support base, and the output end of the drive motor is connected to a drive shaft;

[0013] A rotating gear is mounted on the drive shaft;

[0014] A limiting seat is disposed at the bottom end of the support seat and is fixedly connected to the inner mounting block;

[0015] Pulleys are disposed on both sides of the support base and rotate in conjunction with the positioning and clamping mechanism.

[0016] The first clamping seat and the second clamping seat together with the bottom clamping seat form a variable diameter clamping space. A rack portion is installed on the rack portion. The rotating gear meshes with the rack portion. The rotation of the rotating gear drives the clamping space enclosed by the first clamping seat, the second clamping seat and the bottom clamping seat to perform a circumferential rotational motion.

[0017] Preferably, the enclosing mechanism further includes:

[0018] A telescopic cylinder, the fixed end of which is connected to one side of the support base;

[0019] The telescopic shaft is connected to the output end of the telescopic cylinder;

[0020] Adjustment seat, connected to the output end of the telescopic shaft;

[0021] A mounting bracket is disposed on the adjusting seat for fixing the inner mounting block and rotating with the first clamping seat and the second clamping seat.

[0022] Preferably, the positioning and clamping mechanism further includes:

[0023] The first connecting shaft seat is installed at the connection between the first clamping seat and the bottom clamping seat;

[0024] The second connecting shaft seat is installed at the connection between the second clamping seat and the bottom clamping seat;

[0025] An anchor post is disposed at the end of the first clamping seat away from the first connecting shaft seat;

[0026] A connecting hook is provided at the end of the second clamping seat away from the second connecting shaft seat. In the clamping state, the anchoring column of the positioning clamping mechanism is locked in place with the connecting hook.

[0027] The slide rail is fixedly installed on the front and rear sides of the positioning and clamping mechanism and slides in cooperation with the mounting bracket.

[0028] Preferably, the mounting bracket is detachably connected to the anchor column via a connecting hook, and the telescopic cylinder pushes and pulls the first clamping seat and the second clamping seat via a telescopic shaft to drive the first clamping seat and the second clamping seat to open and close, thereby achieving rapid clamping of the reinforcing bar.

[0029] Preferably, the gripping mechanism includes a gripping arc rod, an adjusting link, and a gripping roller; multiple gripping arc rods are movably mounted on one side of the inner mounting block, a gripping roller is rotatably mounted on one side of the gripping arc rod, an adjusting link is hinged at the middle position of the gripping arc rod, one end of the adjusting link is rotatably mounted on one side of the positioning and clamping mechanism, and multiple sets of gripping rollers together form a clamping cavity adapted to steel bars of different diameters.

[0030] Preferably, the multiple sets of gripping rollers are arranged in a ring, and each gripping roller has a limiting clamping structure installed on its outer side wall. The limiting clamping structure is used to realize automatic centering of the reinforcing bar to ensure that the axis of the reinforcing bar is set coaxially with the processing reference.

[0031] Preferably, the clamping space enclosed by the first clamping seat, the second clamping seat, and the bottom clamping seat is in sliding engagement with the inner mounting block.

[0032] Preferably, the gripping mechanism further includes an elastic pre-tightening component, which is sleeved on the outer wall of the gripping roller and is used to provide a progressive clamping force when the positioning and clamping mechanism closes to prevent indentations from forming on the surface of the reinforcing bar.

[0033] Preferably, a control unit is installed on the mounting base, and the control unit is electrically connected to the closing mechanism and the adjusting mechanism respectively; the control unit has a built-in pressure sensor and a displacement sensor, the pressure sensor is used to detect the clamping force of the gripping mechanism on the steel bar, and the displacement sensor is used to detect the opening and closing displacement of the first clamping seat and the second clamping seat, so as to realize closed-loop adaptive clamping control.

[0034] The beneficial effects of this invention are:

[0035] 1. The present invention forms a variable diameter clamping space by enclosing the bottom clamping seat, the first clamping seat and the second clamping seat of the positioning clamping mechanism. With the telescopic drive structure of the enclosing mechanism, the size of the clamping space can be adjusted according to the diameter of the steel bar. Without replacing the clamping module, it can quickly accommodate and clamp steel bars of various specifications, which significantly improves the versatility and work efficiency of the clamping device.

[0036] 2. This invention uses a ring-shaped arrangement of gripping rollers and adjusting rods in conjunction with a positioning clamping mechanism to automatically correct the offset position of the reinforcing bar during the closing clamping process. This ensures that the axis of the reinforcing bar is coaxial with the processing reference of the device, completely solving the problems of reinforcing bar eccentricity and tilting that are prone to occur in traditional manual clamping and simple clamping. This effectively ensures the processing accuracy of subsequent reinforcing bar cutting, bending, welding and other processes, improves the pass rate of reinforcing bar components, and meets the needs of high-precision reinforcing bar processing operations. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0039] Figure 2 This is an enlarged schematic diagram of the clamping component structure of the present invention;

[0040] Figure 3 This is a first-view schematic diagram of the positioning and clamping mechanism structure of the present invention;

[0041] Figure 4 This is a second-view schematic diagram of the positioning and clamping mechanism structure of the present invention;

[0042] Figure 5 This is an enlarged schematic diagram of the support structure of the present invention;

[0043] Figure 6 This is the present invention. Figure 5 A magnified view of part A in the diagram.

[0044] The reference numerals in the figure are as follows: 1. Mounting base; 2. Support base; 21. Drive motor; 211. Drive shaft; 212. Rotary gear; 22. Limiting seat; 23. Pulley; 3. Enclosing mechanism; 31. Telescopic cylinder; 32. Telescopic shaft; 33. Adjusting seat; 34. Mounting bracket; 4. Positioning and clamping mechanism; 41. Bottom clamping seat; 42. First clamping seat; 43. Second clamping seat; 44. Inner mounting block; 45. First connecting shaft seat; 46. Second connecting shaft seat; 47. Anchor column; 48. Connecting hook; 49. Slide rail component; 5. Grip mechanism; 51. Grip arc rod; 52. Adjusting connecting rod; 53. Grip roller. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] like Figures 1-6 As shown, a quick positioning and clamping device for building rebar includes: a mounting base 1, two opposing support seats 2 mounted on the mounting base 1, and a closing drive mechanism mounted on the support seats 2; and further includes:

[0047] The positioning and clamping mechanism 4 is disposed on the mounting base 1. The positioning and clamping mechanism 4 includes an inner mounting block 44, a bottom clamping seat 41, and a first clamping seat 42 and a second clamping seat 43 disposed opposite to each other on both sides of the bottom clamping seat 41. The first clamping seat 42 and the second clamping seat 43 together with the bottom clamping seat 41 form a variable diameter clamping space.

[0048] The enclosing mechanism 3 is located on both sides of the support base 2 and is connected to the positioning and clamping mechanism 4 for transmission. It is used to drive the first clamping base 42 and the second clamping base 43 to move relative to the bottom clamping base 41, so as to adjust the positioning and clamping mechanism 4 to accommodate and clamp steel bars of different diameters.

[0049] The gripping mechanism 5 is installed inside the positioning and clamping mechanism 4 and works with the positioning and clamping mechanism 4 to achieve radial limiting of the reinforcing bar and axial centering clamping.

[0050] An adjustment mechanism is connected between the mounting base 1 and the positioning clamping mechanism 4. It is used to adjust the spatial position of the positioning clamping mechanism 4 relative to the mounting base 1 and to cooperate in achieving the clamping force of the gripping mechanism 5.

[0051] In specific implementation, the mounting base 1 serves as the overall load-bearing foundation of the device, used to fix and install all functional mechanisms, ensuring the overall stability of the device during operation; the support base 2 is symmetrically fixed on the upper surface of the mounting base 1, serving as the mounting carrier for the enclosure mechanism 3, providing support and positioning for the transmission and drive components; the positioning and clamping mechanism 4 is the core clamping component of the device, wherein the bottom clamping seat 41 is a fixed reference clamping component, and the first clamping seat 42 and the second clamping seat 43 are movable clamping components, which together form an adaptive and scalable variable diameter clamping space, which can adapt to the clamping operation of building steel bars of different diameter specifications according to national standards; the inner mounting block 44 is the mounting base of the gripping mechanism 5, integrated inside the positioning and clamping mechanism 4, realizing the various The integrated assembly of the clamping components includes a closing mechanism 3, which serves as the clamping drive actuator. Through mechanical transmission, it drives the opening and closing motion of the clamping seats on both sides, enabling rapid clamping and releasing of the reinforcing bars. This adapts to the clamping requirements of reinforcing bars of different diameters. The gripping mechanism 5 is a precise centering and limiting mechanism, nested on both sides of one end of the positioning clamping mechanism 4. It assists in radially locking the reinforcing bars and corrects their clamping position, ensuring that the reinforcing bar axis is aligned with the processing reference of the device and preventing clamping offset. The adjustment mechanism is an adaptive control mechanism that can finely adjust the spatial position of the positioning clamping mechanism 4 in the front-back, left-right, and up-down directions. It also works in conjunction with the gripping mechanism 5 to automatically match the clamping force according to the reinforcing bar specifications, preventing over-clamping that could damage the reinforcing bars or loosening and slipping.

[0052] As a technical optimization of the present invention, the enclosing drive mechanism includes:

[0053] A drive motor 21 is mounted on a support base 2, and the output end of the drive motor 21 is connected to a drive shaft 211.

[0054] Rotary gear 212 is mounted on drive shaft 211;

[0055] The limiting seat 22 is located at the bottom end of the support seat 2 and is fixedly connected to the inner mounting block 44;

[0056] Pulleys 23 are located on both sides of the support base 2 and are rotatably engaged with the positioning and clamping mechanism 4.

[0057] The first clamping seat 42 and the second clamping seat 43 together with the bottom clamping seat 41 form a variable diameter clamping space. A rack is installed on the rack, and a rotating gear 212 meshes with the rack. The rotation of the rotating gear 212 drives the clamping space enclosed by the first clamping seat 42, the second clamping seat 43 and the bottom clamping seat 41 to perform a circular rotation.

[0058] In specific implementation, the drive motor 21 is the rotational power source of the enclosure mechanism 3, fixedly mounted on the center of one end of the support base 2 near the lower end, providing stable forward and reverse rotational power; the drive shaft 211 is the power transmission component, coaxially fixed to the output end of the drive motor 21, rotating synchronously with the drive motor 21 to transmit torque; the rotating gear 212 is fixedly mounted on the outside of the drive shaft 211, rotating synchronously with the drive shaft 211, forming a gear and rack meshing transmission structure with the rack part of the positioning and clamping mechanism 4, resulting in high transmission accuracy and stable operation; the limit seat 22 is fixed to the bottom of the support base 2 and is connected to the inner... The mounting block 44 is rigidly connected and used to limit the mounting reference position of the inner mounting block 44 in the positioning and clamping mechanism 4 to prevent offset and shaking during rotation. The pulleys 23 are symmetrically arranged on both sides of the support base 2 and roll with the outer wall of the positioning and clamping mechanism 4 to reduce the frictional resistance when the mechanism rotates in a circle and ensure smooth and stable rotation. After the drive motor 21 starts, it drives the drive shaft 211 and the rotating gear 212 to rotate. Through the gear and rack meshing transmission, it drives the entire positioning and clamping mechanism 4 to rotate in a circle around the axis, which can realize the multi-angle posture adjustment of the steel bar and meet the posture requirements of different processing procedures of the steel bar.

[0059] As a technical optimization of the present invention, the enclosing mechanism 3 further includes:

[0060] The telescopic cylinder 31 has its fixed end connected to one side of the support base 2;

[0061] The telescopic shaft 32 is connected to the output end of the telescopic cylinder 31;

[0062] Adjustment seat 33 is connected to the output end of telescopic shaft 32;

[0063] The mounting bracket 34 is set on the adjusting seat 33 and is used to fix the inner mounting block 44 and rotate with the first clamping seat 42 and the second clamping seat 43.

[0064] In specific implementation, the telescopic cylinder 31 is the power actuator for clamping and opening / closing. The fixed end bolt is locked to the side wall of the support base 2, and the position is fixed and does not shake. It relies on air pressure to drive the telescopic reciprocating motion. The telescopic shaft 32 is the power output end, which can complete the extension and retraction action with the telescopic cylinder 31, and transmit linear push and pull power. The adjusting seat 33 is a transition component, rigidly connected to the free end of the telescopic shaft 32, and can move synchronously with the telescopic shaft 32. It is used to support the mounting bracket 34 and finely adjust the assembly gap. The mounting bracket 34 is the support base of the positioning clamping mechanism 4. On the one hand, it slides with the slide rail 49 to realize the rotation of the entire positioning clamping mechanism 4. On the other hand, it forms a rotating pair with the first clamping seat 42 and the second clamping seat 43, providing structural support for the opening and closing of the clamping seat and the rotation of the mechanism. This makes the enclosing mechanism 3 have the dual functions of rotational posture adjustment and opening and closing clamping, improving the adaptability and functionality of the device.

[0065] As a technical optimization of the present invention, the positioning and clamping mechanism 4 further includes:

[0066] The first connecting shaft seat 45 is installed at the connection between the first clamping seat 42 and the bottom clamping seat 41;

[0067] The second connecting shaft seat 46 is installed at the connection between the second clamping seat 43 and the bottom clamping seat 41;

[0068] An anchor post 47 is disposed at the end of the first clamping seat 42 away from the first connecting shaft seat 45;

[0069] The connecting hook 48 is located at the end of the second clamping seat 43 away from the second connecting shaft seat 46, and the anchoring column 47 and the connecting hook 48 form a locking engagement of the positioning clamping mechanism 4 in the clamping state.

[0070] The slide rail 49 is fixedly installed on the front and rear sides of the positioning and clamping mechanism 4 and slides in cooperation with the mounting base 34 to realize the rotational movement of the positioning and clamping mechanism 4.

[0071] In specific implementation, the first connecting shaft seat 45 and the second connecting shaft seat 46 are the hinge hubs of the two sets of clamping seats, respectively, and are installed at the connection position between the clamping seat and the bottom clamping seat 41. This allows the first clamping seat 42 and the second clamping seat 43 to rotate flexibly around their respective shaft seats, achieving smooth opening and closing of the clamping seats and ensuring that there is no jamming or deviation during the opening and closing process. The anchor column 47 is a columnar locking base, fixed to the free end of the first clamping seat 42. The connecting hook 48 is an elastic snap-locking component, assembled at the free end of the second clamping seat 43. The two can quickly engage and lock, so that the clamping mechanism forms an integrated locking structure after closing, preventing the clamping seat from loosening or opening during the clamping of the steel bar, and ensuring clamping stability. The slide rail component 49 is symmetrically fixed on the front and rear end faces of the positioning clamping mechanism 4, and precisely matches and slides with the inner slide groove of the mounting seat 34, providing guidance and limiting for the circumferential rotation of the positioning clamping mechanism 4, reducing rotational friction, and limiting the rotation trajectory to prevent the positioning clamping mechanism 4 from rotating eccentrically.

[0072] As a technical optimization of the present invention, the mounting bracket 34 is detachably connected to the anchor column 47 via the connecting hook 48, and the telescopic cylinder 31 pushes and pulls the first clamping seat 42 and the second clamping seat 43 via the telescopic shaft 32 to drive the first clamping seat 42 and the second clamping seat 43 to open and close, thereby realizing the rapid clamping of the reinforcing bar.

[0073] In practice, the mounting bracket 34 and the positioning clamping mechanism 4 adopt a detachable clamping structure with connecting hooks 48 and anchoring columns 47, which does not require bolts for auxiliary fixation. This facilitates easy disassembly and assembly, and makes it convenient for later equipment inspection, component replacement and maintenance, reducing equipment operation and maintenance costs. The telescopic cylinder 31 outputs linear push-pull power through the telescopic shaft 32, and the power is transmitted to the first clamping seat 42 and the second clamping seat 43. Relying on the hinged rotation of the first connecting shaft seat 45 and the second connecting shaft seat 46, the two sets of clamping seats open and close synchronously. When the clamping seats open, the steel bars can be quickly put in or taken out. When closed, they cooperate with the locking structure to complete the clamping of the steel bars, which greatly improves the efficiency of steel bar clamping and adapts to the needs of rapid operation on the assembly line.

[0074] As a technical optimization of the present invention, the gripping mechanism 5 includes a gripping arc rod 51, an adjusting connecting rod 52, and a gripping roller 53; multiple gripping arc rods 51 are movably mounted on one side of the inner mounting block 44, and a gripping roller 53 is rotatably mounted on one side of the gripping arc rod 51. An adjusting connecting rod 52 is hinged at the middle position of the gripping arc rod 51, and one end of the adjusting connecting rod 52 is rotatably mounted on one side of the positioning clamping mechanism 4. Multiple sets of gripping rollers 53 surround to form a clamping cavity adapted to steel bars of different diameters.

[0075] In specific implementation, the holding arc rod 51 is an arc-shaped support transmission component, with multiple sets evenly distributed and assembled on one side of the inner mounting block 44, allowing for flexible swing adjustment of the angle; the adjusting link 52 is a linkage adjustment component, with both ends hinged to the holding arc rod 51 and the positioning clamping mechanism 4 respectively, and can rotate synchronously with the positioning clamping mechanism 4 to drive the holding arc rod 51 to swing, achieving adaptive adjustment; the holding roller 53 is a clamping component that directly contacts the steel bar, and can rotate freely, reducing friction and wear during steel bar clamping and processing, and avoiding scratches on the steel bar surface; multiple sets of holding rollers 53 form a variable diameter clamping cavity in a ring, which can adaptively shrink or expand according to the steel bar diameter, adapting to the close-fitting clamping of steel bars of different specifications; when the positioning clamping mechanism 4 rotates, through the hinge linkage of the adjusting link 52, all holding arc rods 51 are driven to swing synchronously, so that multiple sets of holding rollers 53 synchronously fit against the outer wall of the steel bar, achieving all-round wrapping clamping.

[0076] As a technical optimization of the present invention, multiple sets of gripping rollers 53 are arranged in a ring, and each gripping roller 53 has a limiting clamping structure installed on its outer side wall. The limiting clamping structure is used to realize automatic centering of the reinforcing bar to ensure that the axis of the reinforcing bar is coaxial with the processing reference.

[0077] In practice, multiple sets of gripping rollers 53 are arranged in a centrally symmetrical ring, ensuring uniform force distribution. They can limit and wrap the steel bars from multiple points around the circumference, avoiding offset and tilting problems caused by single-point clamping. The anti-slip centering structure integrated on the outer wall of the gripping rollers 53 can adaptively conform to the circular outer wall of the steel bar, automatically correcting the position of the steel bar during clamping and forcibly aligning the steel bar axis to the reference line of the device's processing center. This completely solves the problem of eccentric clamping of the steel bar, ensuring the accuracy of subsequent steel bar cutting, bending, welding and other processing procedures. It can be adapted to various circular cross-section building steel bars such as round steel and threaded steel, with high centering accuracy and strong versatility.

[0078] As a technical optimization of the present invention, the clamping space enclosed by the first clamping seat 42, the second clamping seat 43 and the bottom clamping seat 41 is slidably engaged with the inner mounting block 44.

[0079] In practice, when the first clamping seat 42 and the second clamping seat 43 rotate, the whole body slides along the preset track of the inner mounting block 44. The two are in good fit and slide smoothly without jamming or deviation. The sliding fit limits the movement trajectory of the clamping seats, ensuring the stability and coaxiality of the opening and closing action of the clamping seats. This makes the variable diameter clamping space expand and contract evenly, ensuring that the center is aligned when clamping steel bars of different diameters. At the same time, it improves the smoothness of the mechanism's operation and service life, and reduces mechanical wear.

[0080] As a technical optimization of the present invention, the gripping mechanism 5 further includes an elastic pre-tightening component, which is sleeved on the outer wall of the gripping roller 53 and is used to provide a progressive clamping force when the positioning clamping mechanism 4 closes to prevent indentations from forming on the surface of the reinforcing bar.

[0081] In practice, the elastic pre-tightening component is an elastic buffer component, which is fixed on the outside of the gripping roller 53 and integrated with the limiting clamping structure. It has elastic buffering and pressure adaptive adjustment functions, so that when the positioning clamping mechanism 4 rotates to clamp, the elastic pre-tightening component can buffer the instantaneous impact pressure and convert the rigid clamping force into a progressive flexible clamping force. The clamping force increases smoothly from weak to strong, effectively avoiding damage such as surface indentation, peeling, and deformation caused by the rigid extrusion of the steel bar by the metal clamping component, protecting the integrity of the steel bar surface. At the same time, it can adaptively compensate for the threads and uneven gaps on the steel bar surface, improving the clamping fit and stability.

[0082] As a technical optimization of the present invention, a control unit is installed on the mounting base 1. The control unit is electrically connected to the enclosure mechanism 3 and the adjustment mechanism respectively. The control unit has a built-in pressure sensor and a displacement sensor. The pressure sensor is used to detect the clamping force of the gripping mechanism 5 on the steel bar, and the displacement sensor is used to detect the opening and closing displacement of the first clamping seat 42 and the second clamping seat 43, so as to realize closed-loop adaptive clamping control.

[0083] In practice, the control unit is fixedly integrated in the preset mounting position of the mounting base 1, serving as the intelligent control core of the device. It is electrically connected to the drive motor 21, telescopic cylinder 31, and adjustment mechanism of the enclosing mechanism 3 through wiring, realizing the electrical linkage control of the entire mechanism. The pressure sensor collects the clamping pressure data of the gripping mechanism 5 on the steel bar in real time, accurately feeding back the clamping force; the displacement sensor monitors the rotational stroke displacement of the first clamping seat 42 and the second clamping seat 43 in real time, accurately determining the clamping space size and matching the steel bar diameter specification. This allows the control unit to receive the pressure and displacement data collected by the sensors in real time, compare and analyze them with the preset standard parameters, automatically adjust the drive stroke of the enclosing mechanism 3 and the fine adjustment range of the adjustment mechanism, dynamically correct the clamping force and clamping distance, realize adaptive closed-loop clamping control, eliminate over-clamping and under-clamping problems, and improve the automation level and operation accuracy of the device.

[0084] Working principle:

[0085] First, the device is in standby mode before startup. The operator presets the clamping parameters according to the diameter of the steel bar to be processed using the built-in pressure and displacement sensors in the control unit. Then, the telescopic cylinder 31 in the enclosing mechanism 3 is activated, with its fixed end connected to one side of the support base 2. The telescopic shaft 32 extends to push the adjusting seat 33 and the mounting bracket 34. The mounting bracket 34 slides with the positioning clamping mechanism 4 on both sides via the slide rail 49, driving the first clamping seat 42 and the second clamping seat 43 to rotate around the first connecting shaft seat 45 and the second connecting shaft seat 46 respectively. When the shaft seat 46 rotates, the variable-diameter clamping space formed by the bottom clamping seat 41, the first clamping seat 42, and the second clamping seat 43 opens. At this time, the steel bar is placed into the clamping space and passes through the clamping cavity formed by multiple sets of gripping rollers 53. The gripping rollers 53 are installed on one side of the gripping arc rod 51, and the gripping arc rod 51 is movably assembled on one side of the inner mounting block 44. An adjusting connecting rod 52 is hinged in the middle of the gripping arc rod 51. One end of the adjusting connecting rod 52 is rotatably installed on one side of the positioning clamping mechanism 4, thereby completing the initial positioning of the steel bar.

[0086] Secondly, the telescopic cylinder 31 reverses its action, and the telescopic shaft 32 retracts. Through the adjusting seat 33 and the mounting bracket 34, the first clamping seat 42 and the second clamping seat 43 are pulled together gradually. At the same time, the anchoring column 47 and the connecting hook 48 form a locking engagement to ensure the stable closure of the clamping mechanism. During the closing process, multiple sets of gripping rollers 53 arranged in a ring swing synchronously towards the center under the linkage of the adjusting rod 52. Each gripping roller 53 has a limit clamping structure installed on its outer wall to fit against the outer wall of the steel bar and correct the offset position of the steel bar, forcibly setting the steel bar axis coaxial with the processing reference of the device. In addition, the elastic pre-tightening component sleeved on the outer wall of the gripping roller 53 provides a progressive clamping force to prevent indentation on the surface of the steel bar. Meanwhile, the adjusting mechanism connected to the mounting base 1 can adjust the spatial position of the positioning clamping mechanism 4 relative to the mounting base 1 as needed, and cooperate with the gripping mechanism 5 to achieve precise centering clamping.

[0087] Finally, when the first clamping seat 42 and the second clamping seat 43 are fully closed and the gripping roller 53 holds the steel bar tightly, the control unit receives the clamping force signal of the gripping mechanism 5 on the steel bar detected by the pressure sensor and the opening and closing displacement signal of the first clamping seat 42 and the second clamping seat 43 detected by the displacement sensor. It compares and analyzes the signals with the preset parameters and adaptively adjusts the driving force of the telescopic cylinder 31 and the fine adjustment range of the adjustment mechanism in a closed loop to keep the clamping force in the optimal state. If the steel bar posture needs to be changed in subsequent processing, the drive motor 21 can be started. The drive motor 21 is mounted on the support seat 2, and its output end is connected to the drive shaft 211. The rotating gear 212 on the drive shaft 211 meshes with the rack on the positioning clamping mechanism 4. At the same time, the limiting seat 22 fixes the inner mounting block 44, and the pulley 23 rotates with the positioning clamping mechanism 4, so that the entire positioning clamping mechanism 4 drives the steel bar to rotate in a circular motion to meet the needs of multi-angle processing.

[0088] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A quick positioning and clamping device for building steel bars, comprising: Mounting platform (1), on which two opposing support seats (2) are mounted and a closing drive mechanism is mounted on the support seats (2), characterized in that it further includes: A positioning and clamping mechanism (4) is disposed on the mounting base (1). The positioning and clamping mechanism (4) includes an inner mounting block (44), a bottom clamping seat (41), and a first clamping seat (42) and a second clamping seat (43) disposed opposite to each other on both sides of the bottom clamping seat (41). The first clamping seat (42) and the second clamping seat (43) together with the bottom clamping seat (41) form a variable diameter clamping space. The enclosing mechanism (3) is located on both sides of the support base (2) and is connected to the positioning clamping mechanism (4) for driving the first clamping base (42) and the second clamping base (43) to move relative to the bottom clamping base (41) so as to adjust the positioning clamping mechanism (4) to accommodate and clamp steel bars of different diameters. The gripping mechanism (5) is installed inside the positioning clamping mechanism (4) and cooperates with the positioning clamping mechanism (4) to achieve radial limiting of the reinforcing bar and axial centering clamping; An adjustment mechanism is connected between the mounting base (1) and the positioning clamping mechanism (4) to adjust the spatial position of the positioning clamping mechanism (4) relative to the mounting base (1) and to cooperate in achieving the clamping force of the gripping mechanism (5).

2. The quick positioning and clamping device for reinforcing bars in construction according to claim 1, characterized in that, The encirclement drive mechanism includes: A drive motor (21) is mounted on the support base (2), and the output end of the drive motor (21) is connected to a drive shaft (211). A rotary gear (212) is disposed on the drive shaft (211); The limiting seat (22) is located at the bottom end of the support seat (2) and is fixedly connected to the inner mounting block (44); Pulleys (23) are disposed on both sides of the support base (2) and rotate in cooperation with the positioning and clamping mechanism (4); The first clamping seat (42) and the second clamping seat (43) together with the bottom clamping seat (41) form a variable diameter clamping space. A rack is installed on the rack. The rotating gear (212) meshes with the rack. The rotation of the rotating gear (212) drives the clamping space enclosed by the first clamping seat (42), the second clamping seat (43) and the bottom clamping seat (41) to perform a circular rotation.

3. The quick positioning and clamping device for reinforcing bars in construction according to claim 1, characterized in that, The enclosing mechanism (3) also includes: Telescopic cylinder (31), the fixed end of which is connected to one side of the support base (2); The telescopic shaft (32) is connected to the output end of the telescopic cylinder (31); Adjustment seat (33) is connected to the output end of the telescopic shaft (32); Mounting bracket (34) is disposed on the adjusting seat (33) for fixing the inner mounting block (44) and rotatingly engaging with the first clamping seat (42) and the second clamping seat (43).

4. The quick positioning and clamping device for reinforcing bars in construction according to claim 3, characterized in that, The positioning and clamping mechanism (4) further includes: The first connecting shaft seat (45) is installed at the connection between the first clamping seat (42) and the bottom clamping seat (41); The second connecting shaft seat (46) is installed at the connection between the second clamping seat (43) and the bottom clamping seat (41); An anchor post (47) is disposed at the end of the first clamping seat (42) away from the first connecting shaft seat (45); A connecting hook (48) is provided at the end of the second clamping seat (43) away from the second connecting shaft seat (46). In the clamping state, the anchoring column (47) of the positioning clamping mechanism (4) is locked with the connecting hook (48). The slide rail (49) is fixedly installed on the front and rear sides of the positioning and clamping mechanism (4) and slides in cooperation with the mounting bracket (34).

5. A quick positioning and clamping device for reinforcing bars in construction according to claim 4, characterized in that, The mounting bracket (34) is detachably connected to the anchor column (47) via a connecting hook (48). The telescopic cylinder (31) pushes and pulls the first clamping seat (42) and the second clamping seat (43) via a telescopic shaft (32) to drive the first clamping seat (42) and the second clamping seat (43) to open and close, thereby achieving rapid clamping of the reinforcing bar.

6. The quick positioning and clamping device for reinforcing bars in construction according to claim 1, characterized in that, The gripping mechanism (5) includes a gripping arc rod (51), an adjusting link (52), and a gripping roller (53); multiple gripping arc rods (51) are movably mounted on one side of the inner mounting block (44), and a gripping roller (53) is rotatably mounted on one side of the gripping arc rod (51). An adjusting link (52) is hinged at the middle position of the gripping arc rod (51), and one end of the adjusting link (52) is rotatably mounted on one side of the positioning clamping mechanism (4). Multiple sets of gripping rollers (53) surround and form a clamping cavity adapted to steel bars of different diameters.

7. A quick positioning and clamping device for reinforcing bars in construction according to claim 6, characterized in that, Multiple sets of gripping rollers (53) are arranged in a ring. Each gripping roller (53) has a limiting clamping structure installed on its outer side wall. The limiting clamping structure is used to realize automatic centering of the reinforcing bar to ensure that the axis of the reinforcing bar is set coaxially with the processing reference.

8. A quick positioning and clamping device for reinforcing bars in construction according to claim 1, characterized in that, The clamping space enclosed by the first clamping seat (42) and the second clamping seat (43) and the bottom clamping seat (41) is slidably engaged with the inner mounting block (44).

9. A quick positioning and clamping device for reinforcing bars in construction according to claim 6, characterized in that, The gripping mechanism (5) also includes an elastic pre-tightening component, which is sleeved on the outer wall of the gripping roller (53) to provide a progressive clamping force when the positioning clamping mechanism (4) closes, preventing indentations from forming on the surface of the reinforcing bar.

10. A quick positioning and clamping device for reinforcing bars in construction according to claim 1, characterized in that, The mounting base (1) is equipped with a control unit, which is electrically connected to the enclosure mechanism (3) and the adjustment mechanism respectively. The control unit has a built-in pressure sensor and a displacement sensor. The pressure sensor is used to detect the clamping force of the gripping mechanism (5) on the steel bar, and the displacement sensor is used to detect the opening and closing displacement of the first clamping seat (42) and the second clamping seat (43) to realize closed-loop adaptive clamping control.

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