A kind of assembly equipment of prestressed steel bar and tension rod

Abstract

The invention provides an assembly device for prestressed steel bars and tension rods, including a main support and a steel bar picking unit, a tension rod screwing unit and a nut locking unit. The steel bar picking unit includes a steel bar picking device and a steel bar locking device; the tension rod screwing unit includes a screwing device, which is used to clamp a mounting portion provided at the end of the tension rod; the nut locking unit includes a fourth pushing element, a first motor structure and a nut locking mechanism. Under the action of the first motor structure, the nut locking mechanism drives the nut on the tension rod to move axially. In this device, the steel bar picking unit, the tension rod screwing unit and the nut locking unit cooperate with each other to realize the automatic grasping of the track template and the threaded connection of the tension rod and the steel bars on the track template, saving manpower.

Description

Technical Field

[0001] The invention belongs to the field of railway track plate manufacturing, and in particular relates to an assembly device for prestressed steel bars and tension rods. Background Art

[0002] At present, the ballastless track used in high-speed railways has the advantages of long service life, good line condition, not easy to expand the track runway, and no ballast splashing when driving at high speed. The large-scale laying of ballastless track structures on high-speed railways has become a development trend. Prefabricated track slabs are of great significance to improving the speed of railway track laying and improving the quality of railway construction. The prestressed tensioning technology in the mass production process of track slabs is the core of track slab quality control. The key to the overall prestressed tensioning and tensioning quality depends on the safety and accuracy of the tensioning system.

[0003] The production process of the prestressed concrete track slab (convenience store method) of the CRTSIII type ballastless track for high-speed railways is realized by the convection movement of the track slab mold on a fixed functional station. In the existing technology, the installation and locking of the prestressed steel bars and tension rods are all done manually, which is not only labor-intensive, time-consuming and labor-intensive, but also difficult to control the quality, causing a large number of damages to the tension rods. Invention content

[0004] In view of this, the present invention aims to propose an assembly device for prestressed steel bars and tension rods, which solves the technical problem that in the manufacturing process of high-speed railway track plates, the installation and locking of prestressed steel bars and tension rods are all done manually, which is not only labor-intensive, time-consuming and labor-intensive, but also difficult to control the quality, resulting in a large number of damages to the tension rods.

[0005] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0006] An assembly device for prestressed steel bars and tension rods, comprising a main support and:

[0007] The steel bar picking unit comprises a steel bar picking device and a steel bar locking device, wherein the steel bar picking device picks up the track template, and the steel bar locking device clamps and fixes the steel bars on the track template;

[0008] The tension rod screwing unit comprises a fifth pushing element, a second motor structure and a screwing device, wherein the screwing device is used to clamp a mounting portion provided at the end of the tension rod. When the tension rod and the track template steel bar are threadedly connected, the fifth pushing element drives the tension rod to move axially, and the second motor structure provides screwing power.

[0009] The nut locking unit includes a fourth pushing element, a first motor structure and a nut locking mechanism. The fourth pushing element drives the nut locking mechanism to move linearly in the vertical direction. Under the action of the first motor structure, the nut locking mechanism drives the nut on the tension rod to move axially.

[0010] Furthermore, the steel bar picking device includes a first pushing element, a magnet seat and a magnet. The first pushing element is installed on the main bracket, and its push rod is set vertically downward. The magnet seat is fixedly connected to the pushing end of the first pushing element, and the magnet is installed at the bottom of the magnet seat.

[0011] Furthermore, the steel bar locking device includes a clamp and a second pushing element that pushes the clamp downward, the clamp includes a fixed clamp and a movable clamp, and a clamping structure that controls the opening and closing of the clamp to clamp and fix the steel bar is provided between the fixed clamp and the movable clamp.

[0012] Furthermore, the clamping structure includes a hinge pin for hingedly connecting the top of the fixed clamp and the movable clamp, a groove arranged on the side of the movable clamp facing the fixed clamp, and a third pushing element arranged on the fixed clamp. The movable clamp and the third pushing element push rod are movably connected, and the third pushing element pushes the movable clamp to rotate around the hinge pin.

[0013] Furthermore, the screwing device includes a horizontal screwing shaft corresponding to the steel bars on the track template, and a screwing fork head arranged at the outer end of the screwing shaft and corresponding to the tension rod mounting portion.

[0014] Furthermore, the outer end of the screwing shaft is also provided with a guide sleeve corresponding to the mounting portion on the tension rod, and the screwing fork head is concentrically arranged inside the guide sleeve.

[0015] Furthermore, the nut locking structure includes a synchronous belt and a wheel assembly, the nuts on the synchronous belt and the tension rod are correspondingly arranged, the synchronous belt is wound around the wheel assembly, and the first motor structure provides power for the wheel assembly to drive the synchronous belt to move.

[0016] Furthermore, the nut locking structure is a friction wheel arranged corresponding to the nut on the tension rod, and the first motor structure drives the friction wheel to rotate.

[0017] Compared with the prior art, the assembly equipment of prestressed steel bars and tension rods created by the present invention has the following advantages:

[0018] (1) The steel bar locking device can effectively solve the instability during the steel bar grabbing process, and the cooperation between the steel bar locking device and the steel bar picking device can further effectively solve the problem of low steel bar grabbing efficiency; the steel bar picking device uses a magnet to pick up the steel bar, which can optimize the claw structure used by the transmission steel bar grabbing device, and can quickly achieve stable picking up of the steel bar, further improving the steel bar grabbing efficiency; the steel bar locking device uses a clamp to grab the steel bar, and the cooperation between the fixed clamp and the movable clamp enhances the stability and convenience of steel bar picking.

[0019] (2) The nut locking mechanism can realize the automated operation of locking the nut of the tension rod, thereby replacing the manual operation of the tension rod; during the extension process of the fourth pushing element, the slide rail mechanism can guide the support structure, so that the nut locking mechanism can accurately contact the position of the nut of the tension rod. This locking device adopts the first motor structure, which can better realize the nut locking operation on the tension rod.

[0020] (3) The threaded connection installation between the tension rod and the prestressed steel bar is realized through the screwing device of the tension rod screwing unit, and the second slide rail mechanism can play a guiding role during the extension and retraction process of the fifth pushing element, so that the screwing fork head can be accurately aligned with the end of the tension rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0022] Figure 1 This is a schematic diagram of the structure of the assembly equipment for prestressed steel bars and tension rods in this embodiment;

[0023] Figure 2 This is a schematic diagram of the structure of the tension rod twisting unit in this embodiment;

[0024] Figure 3 This is a schematic diagram of the structure of the nut locking unit in this embodiment;

[0025] Figure 4 This is a structural schematic diagram of a nut locking mechanism of this embodiment;

[0026] Figure 5 This is a schematic diagram of the structure of the nut locking mechanism of the second embodiment of the present invention;

[0027] Figure 6 This is a structural schematic diagram of the steel bar picking unit described in this embodiment;

[0028] Figure 7Schematic diagram of the magnet seat-magnet connection structure in the steel bar picking device of this embodiment;

[0029] Figure 8 This is a front view of the steel bar locking device in the steel bar picking device of this embodiment;

[0030] Fig. 9 It is a left view of the steel bar locking device in the steel bar picking device of this embodiment;

[0031] Fig.10 It is a three-dimensional diagram of the steel bar locking device in the steel bar picking device of this embodiment.

[0032] Description of reference numerals:

[0033] 1-frame; 2-tension rod screwing unit; 3-nut locking unit; 4-steel pick-up unit; 5-tension rod; 6-track template; 101-fifth push element; 102-second push element base; 201-fourth guide rail; 202-fourth slide rail; 203-screwing base; 301-screwing shaft; 302-guide sleeve; 3021-screwing fork head; 303-bearing seat; 3031-bearing; 304-second torque motor; 401-motor base; 10-first push element; 20-first slide rail; 21-connecting plate; 22-bracket structure; 23-first guide rail; 30-magnet seat ;31-magnet;40-first base;41-second pushing element;42-second guide rail;50-second base;51-third pushing element;52-clamp;521-fixed clip;522-movable clip;53-first limit member;54-second limit member;55-push plate;5221-groove;60-driving wheel;61-synchronous belt;62-driven wheel;63-locking mechanism bracket;64-friction wheel;70-first torque motor;71-support structure;80-fourth pushing element;81-pushing element base;90-third guide rail;91-third slide rail;93-fixed bracket. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0036] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0037] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0038] An assembly device for prestressed steel bars and tension rods, such as Figure 1 As shown, it includes a main support 1, and a tension rod screwing unit 2, a nut locking unit 3 and a steel bar picking unit 4 arranged on the main support 1;

[0039] like Figure 2As shown, the tension rod twisting unit 2 includes a fifth pushing element 101, a second driving mechanism, a motor base 401, a twisting base 203, a second motor structure 304 and a twisting device capable of twisting the tension rod, the twisting base 203 is installed on the main bracket 1, and the twisting device includes a horizontal twisting shaft 301 corresponding to the steel bars on the track template 6, and a twisting fork head 3021 arranged at the outer end of the twisting shaft 301 and corresponding to the mounting part of the outer end of the tension rod 5. In this embodiment, the screwing fork head 3021 can adopt a conventional nut driver structure for screwing nuts, that is, a sleeve structure corresponding to the nut. In order to quickly align the screwing fork head 3021 with the mounting portion of the tension rod 5, the outer end of the screwing shaft 301 is also provided with a guide sleeve 302 corresponding to the mounting portion on the tension rod 5. The screwing fork head 3021 is arranged at the axial position of the end of the screwing shaft 301, the guide sleeve 302 is installed on the screwing shaft 301, and the screwing fork head 3021 is arranged inside the guide sleeve 302. In this structure, the extended end of the fifth pushing element 101 is connected to the motor base 401, the motor base 401 is slidably connected to the screwing base 203 through the second slide rail mechanism, the second motor structure 304 is arranged on the motor base 401, the output end of the second motor structure 304 is connected to the screwing shaft 301, and the axis of the screwing shaft 301 is arranged parallel to the telescopic direction of the push rod of the fifth pushing element 101. In this structure, the second slide rail mechanism includes a fourth slide rail 202 and a fourth guide rail 201, the fourth slide rail 202 is connected to the motor base 401, the fourth guide rail 201 is connected to the screw base 203, and the fourth slide rail 202 is slidably connected to the fourth guide rail 201. After the steel bar picking unit picks up the prestressed steel bar, the threaded end of the prestressed steel bar is aligned with the screwing fork head 3021 of the screwing device, and the threaded end of the prestressed steel bar cooperates with the tension rod. The principle is: the tension rod 5 is driven by the screwing device to realize the threaded connection between the tension rod and the prestressed steel bar, and the second slide rail mechanism can play a guiding role in the extension and retraction process of the fifth pushing element, so that the screwing fork head can be accurately aligned with the mounting portion of the end of the tension rod, so that the screwing fork head 3021 can be quickly mounted on the mounting portion of the tension rod 5.

[0040] In the tension rod screwing unit 2, the second motor structure 304 is connected to the motor base 401. The second motor structure also includes a bearing seat 303 and two bearings 3031. The output end of the second motor structure is arranged inside the bearing seat 303. The end of the screwing shaft 301 away from the screwing fork head 3021 is rotatably connected to the bearing seat 303 through two bearings 3031. The bearing seat 303 is connected to the motor base 401. In this unit, the motor base 401 is an L-shaped plate, and the second motor structure 304 is arranged on the upper end surface of the horizontal plate of the motor base 401.

[0041] In this tension rod twisting unit 2, the fifth pushing element 101 corresponds to the second pushing element base 102, the fifth pushing element 101 is arranged on the second pushing element base 102, the second pushing element base 102 is installed on the main bracket 1, the protruding end of the fifth pushing element 101 is connected to the vertical plate of the motor base 401, and the fifth pushing element 101 is a cylinder.

[0042] The nut locking unit 3, such as Figure 3 As shown, the nut locking unit includes a fixed bracket 93, a fourth pushing element 80, a support structure 71, a first motor structure 70, a nut locking mechanism and a locking mechanism bracket 63. The fixed bracket 93 is mounted on the main bracket 1, the fourth pushing element 80 is mounted on the fixed bracket 93, the push rod of the fourth pushing element 80 is arranged vertically downward, the support structure 71 is slidably connected to the fixed bracket 93 through the first slide rail mechanism, the extended end of the fourth pushing element 80 is connected to the support structure 71, and the extension direction of the push rod of the fourth pushing element 80 is parallel to the sliding direction of the support structure 71. The first motor structure 70 is mounted on the locking mechanism bracket 63, the locking mechanism bracket 63 is connected to the support structure 71, the output end of the first motor structure 70 is connected to the nut locking mechanism, the first motor structure 70 provides power for the nut locking mechanism, and the nut locking mechanism is arranged corresponding to the position of the nut on the tension rod 5.

[0043] Embodiment 1, as Figure 4 As shown, the locking mechanism bracket 63 includes a first plate and two second plates arranged in parallel, and the two second plates are vertically arranged at the same end of the first plate. The nut locking mechanism includes a driving wheel 60, two driven wheels 62 and a synchronous belt 61 capable of driving the tension rod nut to rotate. The driving wheel 60 is rotatably connected to the first plate, and each second plate is correspondingly connected to a driven wheel 62. The driving wheel 60 is connected to the two driven wheels 62 through the synchronous belt 61. In this embodiment, the driving wheel drives the synchronous belt to move, and the synchronous belt is close to the nut on the tension rod. The friction between the synchronous belt and the nut is used to move the nut until the nut moves axially along the tension rod 5 until it is in close contact with the side of the track template 6.

[0044] Embodiment 2, as Figure 5As shown, the locking mechanism bracket 63 is an L-shaped bracket, the horizontal plate of the locking mechanism bracket 63 is connected to the support structure 71, the first motor structure 70 is connected to the vertical plate of the locking mechanism bracket 63, and the output end of the first motor structure 70 is connected to the nut locking mechanism. In this embodiment, the nut locking mechanism is a friction wheel 64. In this embodiment, the first motor structure 70 includes a first motor structure and a reducer, the first motor structure is connected to the nut locking mechanism through the reducer, and the first motor structure and the reducer are both connected to the locking mechanism bracket 63. The support structure 71 includes a third plate, a fourth plate and a fifth plate, the fourth plate and the fifth plate are arranged side by side on the same side of the third plate, the fourth plate is connected to the protruding end of the first driving mechanism, the fifth plate is connected to the locking mechanism bracket 63, and the third plate is connected to the fixed bracket 93 through the first slide rail mechanism. The first slide rail mechanism includes a third guide rail 90 and a third slide rail 91 . The third guide rail 90 is connected to a fixed bracket 93 . The third slide rail 91 is connected to a third plate. The third guide rail 90 is slidably connected to the third slide rail 91 .

[0045] In this embodiment, the fourth pushing element 80 corresponds to a pushing element base 81, and the fourth pushing element 80 is connected to the fixed bracket 93 through the pushing element base 81. During the extension process of the fourth pushing element 80, the first slide rail mechanism can guide the support structure 71, so that the nut locking mechanism can accurately contact the locking nut position on the tension rod 5. In this embodiment, the fourth pushing element 80 is a cylinder.

[0046] like Figure 6-10 As shown, the steel bar picking unit 4 includes a support structure 22, a first pushing element 10, a steel bar picking device and a steel bar locking device. The support structure 22 is installed on the main support 1. The steel bar picking device includes a first pushing element 10, a magnet seat 30 and a magnet 31. The first pushing element 10 is installed on the support structure 22, and its push rod is vertically arranged downward and the push rod is installed with a connecting plate 21. The magnet seat 30 is fixedly connected to the connecting plate 21, and the magnet 31 is installed at the bottom of the magnet seat 30 by bolts to adsorb and fix the track template. The steel bar locking device includes a clamp 52 and a second pushing element 41 that pushes the clamp 52 downward. The clamp 52 includes a fixed clamp 521 and a movable clamp 522. A clamping structure is provided between the fixed clamp 521 and the movable clamp 522 to control the opening and closing of the clamp 52 to clamp and fix the steel bar.

[0047] In this embodiment, the top ends of the fixed clip 521 and the movable clip 522 are hingedly connected by a horizontally arranged hinge pin, the hinge pin is parallel to the steel bars on the track template 6, and the movable clip 522 is provided with a groove 5221 on its side facing the fixed clip 521. The fixed clip 521 is provided with a third pushing element 51, and the third pushing element 51 pushes the movable clip 522 to rotate around the hinge pin. Specifically, a push plate 55 is provided on the side of the movable clamp 522, and a long hole is opened in the vertical direction of the push plate 55. The push rod of the third pushing element 5 passes through the long hole and is installed on the movable clamp 522 through a ball joint structure. The push rod of the third pushing element 5 is provided with a first stopper 53 and a second stopper 54 in parallel. The first stopper 53 and the second stopper 54 are arranged on both sides of the long hole. The second stopper 54 is arranged between the pushing end of the third pushing element 5 and the first stopper 53. The distance between the first stopper 63 and the second stopper 54 is greater than the width of the push plate 44. The push rod extends, pushes the connecting plate 55 through the first stopper 53, and then drives the movable clamp 522 to rotate, so as to open the clamp 52. The push rod of the third pushing element 5 retracts, and pushes the movable clamp 522 back through the second stopper 54, so as to close the clamp. When the steel bar picking device has picked up the steel bar, the steel bar locking position of the steel bar locking device is directly opposite to the steel bar picking position of the steel bar picking device. The steel bar locking device can effectively solve the instability that occurs during the steel bar grabbing process. Moreover, through the cooperation between the steel bar locking device and the steel bar picking device, the problem of low steel bar grabbing efficiency can be further effectively solved.

[0048] In this embodiment, in order to ensure the linearity of the push rod extension of the first pushing element 10, the connecting plate 21 is provided with a first slide rail 20, the bracket structure 22 is provided with a first guide rail 23, and the first slide rail 20 and the first guide rail 23 are matched and slidably connected. This structure can quickly and stably pick up the steel bars, further improving the grabbing efficiency of the steel bars.

[0049] In this embodiment, the steel bar locking device also includes a first base 40, a second base 50, a second guide rail 42 and a second slide rail. The second pushing element 41 is installed on the first base 40. The extension direction of the push rod of the second pushing element 41 is the same as the extension direction of the push rod of the first pushing element 10, both of which are vertically downward. The first base 40 is detachably mounted on the magnet base 30 by bolts. The second guide rail 42 is vertically arranged. The second guide rail 42 is installed on the first base 40. The second base 50 is provided with a second slide rail. The second slide rail and the second guide rail 42 are matched and slidably connected. The clamp 52 is installed on the second base 50. This design ensures and enhances the accuracy of the clamp 52 locking. The steel bar locking device adopts the clamp 52 to grab the steel bar, and the cooperation between the fixed clamp and the movable clamp enhances the stability of the steel bar picking.

[0050] In this embodiment, the first pushing element 10 is an electric cylinder, and the second pushing element 41 and the third pushing element 51 are both pneumatic cylinders.

[0051] In this embodiment, the steel bar picking unit, the nut locking unit and the tension rod screwing unit are all installed on the main bracket. The main bracket is L-shaped and is connected to the working ground through the bracket base.

[0052] This example works like this:

[0053] The first pushing element 10, the second pushing element 41, the third pushing element 51, the fourth pushing element 80, the fifth pushing element 101, the first motor structure 70, and the second motor structure 304 are connected to the controller. When the track plate mold with the steel bar skeleton runs to the steel bar picking station, the first pushing element 10 extends to make the magnet 31 move downward into the track plate mold, and the corresponding transverse prestressed steel bar is firmly sucked by the magnet 31. Then the first pushing element 10 contracts and the magnet 31 attracts the transverse prestressed steel bar to move upward until the transverse prestressed steel bar is horizontally concentric with the tensioning rod and stops. The second pushing element 41 of the picking mechanism extends, and at the same time, the push rod of the third pushing element 51 extends, so that the clamp 52 opens to contain the transverse prestressed steel bar in the groove 5221. The third pushing element 51 contracts, so that the clamp 52 quickly clamps and fixes the transverse prestressed steel bar, thereby completing the transverse prestressed steel bar picking process.

[0054] The head end of the tension rod 5 is provided with an internal thread, and the tail end of the tension rod 5 is a nut-shaped mounting portion. The end of the tension rod is inserted into the anchor hole aligned with the transverse prestressed steel bar from the outside of the track plate side mold without protruding from the inside of the side mold.

[0055] At this time, the protruding end of the fifth pushing element 101 is extended, and under the guiding action of the guide sleeve 302, the fork head 3021 is rotated to tighten the corresponding connecting part at the end of the tension rod, and the fifth pushing element 101 continues to extend to make the internal thread at the head end of the tension rod contact with the external thread at the end of the transverse prestressed steel bar, and then the second motor structure 304 is turned on to tighten the head end of the tension rod and the external thread of the transverse prestressed steel bar. After reaching the set value, the second motor structure 304 stops rotating.

[0056] After the tension rod 5 and the steel bars on the track template 6 are threadedly connected, the output end of the fourth pushing element 80 is extended to move the synchronous belt 61 or the friction wheel 64 to contact the tension rod locking nut, and then the first motor structure 70 is started, and the synchronous belt 61 or the friction wheel 64 is controlled to rotate by the first motor structure, and further drives the locking nut on the tension rod to automatically rotate until it is closely attached to the track plate mold. When the torque value is reached, the first motor structure stops rotating. The output end of the fourth pushing element 80 contracts to move the synchronous belt 61 or the friction wheel to separate from the tension rod locking nut, and then the first motor structure 70 is turned off.

[0057] The third pushing element 51 of the picking mechanism extends, so that the clamp 52 quickly loosens the transverse prestressed steel bar, and the first pushing element 10 contracts to move the magnet 31 upward and separate from the transverse prestressed steel bar, and lift it above the track plate mold; the extended end of the fifth pushing element 101 contracts, so that the guide sleeve 302 separates from the corresponding tension rod end and maintains a certain safety distance. At this point, the automatic installation and locking of the transverse prestressed steel bar and the tension rod are completed.

[0058] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An assembly device for prestressed steel bars and tension rods, characterized in that: It includes a main bracket (1) and: A steel bar picking unit (4) comprises a steel bar picking device and a steel bar locking device, wherein the steel bar picking device picks up the track template (6), and the steel bar locking device clamps and fixes the steel bars on the track template (6); The tension rod screwing unit (2) comprises a fifth pushing element (101), a second motor structure (304) and a screwing device, wherein the screwing device is used to clamp a mounting portion provided at the end of the tension rod (5), and during the process of threaded connection between the tension rod (5) and the steel bar of the track template (6), the fifth pushing element (101) drives the tension rod (5) to move axially, and the second motor structure (304) provides screwing power; The nut locking unit (3) comprises a fourth pushing element (80), a first motor structure (70) and a nut locking mechanism, wherein the fourth pushing element (80) drives the nut locking mechanism to move linearly in a vertical direction, and under the action of the first motor structure (70), the nut locking mechanism drives the nut on the tension rod (5) to move axially; The steel bar picking device comprises a first pushing element (10), a magnet seat (30) and a magnet (31), wherein the first pushing element (10) is mounted on the main support (1), and its push rod is arranged vertically downward, the magnet seat (30) is fixedly connected to the pushing end of the first pushing element (10), and the magnet (31) is mounted at the bottom end of the magnet seat (30); The screwing device comprises a horizontal screwing shaft (301) corresponding to the steel bars on the track template (6), and a screwing fork head (3021) arranged at the outer end of the screwing shaft (301) and corresponding to the mounting portion of the tension rod (5); The outer end of the screwing shaft (301) is also provided with a guide sleeve (302) corresponding to the mounting portion on the tension rod (5), and the screwing fork head (3021) is coaxially arranged inside the guide sleeve (302).

2. The assembly equipment of prestressed steel bars and tension rods according to claim 1, characterized in that: The steel bar locking device comprises a clamp (52) and a second pushing element (41) for pushing the clamp (52) downward, the clamp (52) comprising a fixed clamp (521) and a movable clamp (522), and a clamping structure for controlling the opening and closing of the clamp (52) to clamp and fix the steel bar is provided between the fixed clamp (521) and the movable clamp (522).

3. The assembly equipment of prestressed steel bars and tension rods according to claim 2 is characterized in that: The clamping structure comprises a hinge pin for hinged connection between the top ends of the fixed clamp (521) and the movable clamp (522), a groove (5221) arranged on the side of the movable clamp (522) facing the fixed clamp (521), and a third pushing element (51) arranged on the fixed clamp (521); the movable clamp (522) and the third pushing element (51) are movably connected by a push rod; the third pushing element (51) pushes the movable clamp (522) to rotate around the hinge pin.

4. The assembly equipment of prestressed steel bars and tension rods according to claim 1, characterized in that: The nut locking mechanism comprises a synchronous belt (61) and a wheel assembly. The synchronous belt (61) and the nut on the tension rod (5) are arranged correspondingly. The synchronous belt (61) is wound around the wheel assembly. The first motor structure (70) provides power for the wheel assembly to drive the synchronous belt to move.

5. The assembly equipment of prestressed steel bars and tension rods according to claim 1, characterized in that: The nut locking mechanism is a friction wheel (64) arranged corresponding to the nut on the tension rod (5), and the first motor structure (70) drives the friction wheel to rotate.

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