Multi-specification steel bar thread rolling machining device

Abstract

The utility model provides a multi-specification steel bar thread rolling machining device. The multi-specification steel bar thread rolling machining device is characterized in that a ground rail assembly is installed on the ground; the telescopic supporting assembly is installed on the ground rail assembly, can stretch out and draw back in length and is suitable for thread rolling machining of reinforcing steel bars of various specifications. The movable thread rolling machine is connected with one end of the telescopic supporting assembly and movably installed above the ground rail assembly. The fixed thread rolling machine is connected with the other end of the telescopic supporting assembly and fixedly installed on the ground. The driving part is installed on the movable thread rolling machine and the ground rail assembly and drives the movable thread rolling machine to move along the ground rail assembly. When the specification of a reinforcing steel bar changes, the distance between the thread rolling machines at the two ends can be adjusted according to the specific length of the reinforcing steel bar by means of cooperative work of the ground rail assembly, the telescopic support assembly and the movable thread rolling machines, a professional does not need to arrive at the site, and the reinforcing steel bar supporting support in the middle does not need to be manually adjusted. When the field is insufficient, the device can still work normally after the short ground rail part is dismantled.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar processing, in particular to a multi-specification steel bar thread rolling processing device. Background Art

[0002] In the practical application of rebar, to ensure effective connections between the rebars, both ends of the rebar need to be thread-rolled. However, the thread-rolling equipment currently available on the market generally faces limitations, namely that it can only perform thread-rolling operations on rebars of a specific length. Once the rebar length changes, professional technicians are required to intervene and manually adjust the position of the thread-rolling mechanism at both ends of the equipment to accommodate the processing requirements of the new rebar length. This process is not only cumbersome, but also relies on heavy auxiliary equipment such as tower cranes and requires the collaboration of at least two auxiliary personnel. Therefore, this operating mode significantly increases the consumption of manpower and material resources, resulting in a waste of resources and extremely low efficiency. Utility Model Content

[0003] In view of the defects in the prior art, the purpose of the present invention is to provide a multi-specification steel bar thread rolling processing device.

[0004] According to one aspect of the present invention, a multi-specification steel bar thread rolling processing device is provided, comprising:

[0005] A ground rail assembly, wherein the ground rail assembly is installed on the ground;

[0006] A telescopic support assembly is installed on the ground rail assembly, and its length can be extended and retracted, and it is suitable for thread rolling of steel bars of various specifications;

[0007] a mobile thread rolling machine connected to one end of the telescopic support assembly and movably mounted above the floor rail assembly;

[0008] A fixed thread rolling machine is connected to the other end of the telescopic support assembly and is fixedly installed on the ground.

[0009] A driving unit is installed on the mobile thread rolling machine and the ground rail assembly, and drives the mobile thread rolling machine to move along the ground rail assembly.

[0010] Preferably, the ground rail assembly includes:

[0011] A support frame, wherein the support frame is fixed to the ground;

[0012] A slide rail is installed on the top of the support frame; wherein the slide rail includes a spliced ​​long slide rail and a short slide rail.

[0013] Preferably, the telescopic support assembly comprises:

[0014] a first fixed bracket, the fixed bracket being fixedly connected to the mobile thread rolling machine;

[0015] a second fixed bracket, the fixed bracket being fixedly connected to the fixed thread rolling machine;

[0016] an outer bracket, wherein a plurality of the outer brackets are disposed between the first fixing bracket and the second fixing bracket, and the bottoms of the outer brackets are movably connected to the floor rail assembly;

[0017] Inner brackets, wherein a plurality of the inner brackets are disposed between the first fixed bracket and the second fixed bracket, and the bottoms of the inner brackets are movably connected to the floor rail assembly; the inner brackets and the outer brackets are spaced apart from each other;

[0018] Connecting plates, multiple connecting plates connect the first fixed bracket, the outer bracket, the inner bracket, and the second fixed bracket together; the connecting plates, as well as the connecting plates and each bracket, are all connected by hinges.

[0019] Preferably,

[0020] The outer bracket comprises:

[0021] an outer frame, the outer frame forming a frame-like structure;

[0022] External guide wheel groups, two of which are respectively installed on both sides of the bottom of the outer frame;

[0023] The inner support comprises:

[0024] An inner frame, wherein the inner frame forms a frame structure,

[0025] Inner guide wheel groups, two of the inner guide wheel groups are respectively installed on both sides of the bottom of the inner frame;

[0026] The outer guide wheel group and the inner guide wheel group are oriented in opposite directions and are installed relative to each other.

[0027] Preferably, the outer guide wheel group and the inner guide wheel group have the same structure, both comprising two layers of guide wheels, wherein:

[0028] The first layer of guide wheels is two rollers, which are symmetrically installed on both sides of the bottom of the outer frame / inner frame;

[0029] The second layer of guide wheels is two conical wheels, and the two conical wheels are correspondingly installed under the two rollers;

[0030] The slide rail of the floor rail assembly is inserted between the roller and the tapered wheel; the roller is provided with a rib to prevent the inner and outer brackets from deviating; the tapered wheel fits against the lower surface of the slide rail to limit the inner and outer brackets from tipping over.

[0031] Preferably, a guide plate is installed on the top of the outer frame and the inner frame.

[0032] Preferably, the outer bracket / inner bracket located between the first fixing bracket and the second fixing bracket is an auxiliary bracket;

[0033] The auxiliary bracket comprises:

[0034] An auxiliary frame, with a guide wheel assembly installed at the bottom of the auxiliary frame;

[0035] a supporting rod, the supporting rod being arranged above the auxiliary frame;

[0036] A lifting cylinder, wherein a plurality of the lifting cylinders are installed on the auxiliary frame, and the telescopic rods of the lifting cylinders support the supporting rod.

[0037] Preferably, a sliding groove is provided on the top of the support rod;

[0038] The auxiliary bracket further includes:

[0039] A push-pull cylinder, the push-pull cylinder being laterally arranged inside the supporting rod;

[0040] A push plate is arranged in the slide groove, a part of the push plate is higher than the support rod, and the other part is connected to the push-pull cylinder.

[0041] Preferably, the driving unit includes:

[0042] A motor, wherein the motor is installed on the mobile thread rolling machine;

[0043] A reducer connected to an output end of the motor;

[0044] A gear, the gear being fixed to an output end of the reducer;

[0045] A rack is installed on the ground rail assembly.

[0046] Preferably, the mobile thread rolling machine and the fixed thread rolling machine are both equipped with a length detector; the length detector comprises:

[0047] A detection cylinder, wherein the output end of the detection cylinder is arranged along the length direction of the steel bar;

[0048] A detection push plate connected to the output end of the detection cylinder;

[0049] An electronic ruler is connected to the detection push plate.

[0050] Preferably, it further comprises: a raw material rack, which is located on one side of the ground rail assembly and is used to store steel bar raw materials.

[0051] Preferably, it also includes: a finished product rack, which is located on one side of the ground rail assembly and is used to stack the finished steel bars that have completed the thread rolling process.

[0052] Compared with the prior art, the embodiments of the present invention have at least the following beneficial effects:

[0053] The embodiment of the utility model provides a multi-specification steel bar thread rolling processing device. When the steel bar specifications change, relying on the coordinated work of the ground rail assembly, the telescopic bracket assembly and the mobile thread rolling machine, the distance between the thread rolling machines at both ends can be adjusted according to the specific length of the steel bar. There is no need for professional personnel to arrive at the site, and the middle steel bar support bracket does not need to be manually adjusted.

[0054] The multi-specification steel bar thread rolling processing device of the embodiment of the utility model can still operate normally even if the short ground rail part is removed when the space is insufficient.

[0055] In an embodiment of the utility model, a multi-specification steel bar thread rolling processing device is provided, wherein the guide wheels of the inner bracket and the outer bracket are distributed on both sides of the ground rail, and no interference occurs between two adjacent inner brackets and outer brackets, thereby effectively shortening the distance between the two thread rolling machines. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0057] Figure 1 This is a schematic diagram of the overall structure of a multi-specification steel bar thread rolling processing device in one embodiment of the present utility model;

[0058] Figure 2 This is a schematic structural diagram of a multi-specification steel bar thread rolling processing device in a preferred embodiment of the present invention, in which a raw material rack and a finished product rack are added;

[0059] Figure 3 This is a schematic structural diagram of a floor rail assembly in a preferred embodiment of the present invention;

[0060] Figure 4 This is a structural diagram of a telescopic support assembly in a preferred embodiment of the present utility model;

[0061] Figure 5 This is a schematic structural diagram of an outer bracket in a preferred embodiment of the present utility model;

[0062] Figure 6 This is a schematic structural diagram of an inner bracket in a preferred embodiment of the present utility model;

[0063] Figure 7 This is a schematic structural diagram of a roller in a preferred embodiment of the present invention;

[0064] Figure 8 This is a schematic structural diagram of a conical wheel in a preferred embodiment of the present invention;

[0065] Figure 9 This is a schematic structural diagram of an auxiliary bracket in a preferred embodiment of the present invention from a side view;

[0066] Figure 10 This is a structural schematic diagram of another side view of the auxiliary bracket in a preferred embodiment of the present invention;

[0067] Figure 11 This is a schematic structural diagram of a push plate of an auxiliary bracket in a preferred embodiment of the present utility model;

[0068] Figure 12 A side view of a multi-specification steel bar thread rolling processing device in a preferred embodiment of the present invention;

[0069] Figure 13 This is a structural diagram of a preferred embodiment of the present invention in which a length detector is installed at a fixed end of a thread rolling machine;

[0070] Figure 14 This is a structural diagram of a length detector in a preferred embodiment of the present utility model;

[0071] Figure 15 This is a schematic diagram of the mechanism of a preferred embodiment of the present invention in which a thread rolling mobile machine integrates functions such as thread rolling, grinding, and rib stripping.

[0072] In the picture:

[0073] 100-ground rail assembly, 101-support frame, 102-slide rail;

[0074] 200- telescopic support assembly, 201- first fixed bracket, 202- second fixed bracket, 203- outer bracket, 204- inner bracket, 205- connecting plate, 206- guide plate, 207- lifting cylinder, 208- supporting rod, 209- push plate, 210- push-pull cylinder;

[0075] 2031-external frame, 2032-external guide wheel assembly; 2041-inner frame, 2042-guide wheel assembly, 21-roller, 22-conical wheel;

[0076] 300-Mobile thread rolling machine, 301-Grinding machine, 302-Thread rolling machine, 303-Rib stripping machine;

[0077] 400-Fixed thread rolling machine;

[0078] 500-Raw material rack;

[0079] 600- finished product rack, 601- finished product storage rack 601;

[0080] 700- driving unit;

[0081] 800-length detector, 801-measuring cylinder, 802-measuring push plate, 803-electronic ruler. DETAILED DESCRIPTION

[0082] The present invention will be described in detail below with reference to specific embodiments. The following embodiments will help those skilled in the art further understand the present invention, but are not intended to limit the present invention in any way. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the scope of the present invention. These modifications and improvements are all within the scope of protection of the present invention.

[0083] In view of the drawback of the existing technology that the thread rolling process for steel bars of different lengths and specifications consumes huge manpower and material resources, an embodiment of the present invention provides a multi-specification steel bar thread rolling processing device, which mainly includes: a ground rail assembly 100, a telescopic support assembly 200, a mobile thread rolling machine 300, a fixed thread rolling machine 400 and a driving unit 700, such as Figure 1 As shown,

[0084] The floor rail assembly 100 is mounted on the ground. The telescopic support assembly 200 is mounted on the floor rail assembly 100 and can be extended and retracted to support rebar of varying lengths. The mobile thread rolling machine 300 is connected to one end of the telescopic support assembly 200 and is movably mounted above the floor rail assembly 200. The fixed thread rolling machine 400 is connected to the other end of the telescopic support assembly 200 and is fixedly mounted on the ground. A drive unit 700 is mounted between the mobile thread rolling machine 300 and the floor rail assembly 100 to drive the mobile thread rolling machine 300 along the floor rail assembly 100.

[0085] The above embodiment, relying on the coordinated operation of the floor rail assembly, telescopic bracket assembly, and mobile thread rolling machine, intelligently adjusts the distance between the two thread rolling machines based on the specific length of the rebar to precisely match the required specifications of the rebar being processed. This design significantly reduces reliance on large equipment and reduces labor costs, as the entire processing process does not require the direct participation of multiple staff members, thereby significantly improving work efficiency.

[0086] In order to arrange the steel bars in order, a preferred embodiment of the present invention is provided with a raw material rack 500 and a finished product rack 600. Figure 2 As shown, the raw material rack 500 is a rack made of welded square tubes and fixed to the ground with expansion screws. The side of the raw material rack 500 near the ground rail assembly is tilted downward to facilitate transportation to the processing station; the other side is raised to prevent the placed steel bars from falling.

[0087] Similarly, the finished product rack 600 is placed on the other side of the entire multi-specification steel bar thread rolling processing device, which includes several finished product storage racks 601. Each finished product storage rack 601 is built from several steel pipes, such as Figure 2 The bottom is fixed to the ground by pins. There is an inclined rod on the side close to the ground rail assembly and a groove on the other side. The finished steel bars slide along the inclined rod and fall into the groove for storage.

[0088] The main function of the ground rail assembly 100 is to provide support and guidance for the mobile thread rolling machine and the telescopic support assembly. In order to better achieve the above functions, in a preferred embodiment of the present invention, the ground rail assembly 100 is composed of a support frame 101 fixed to the ground and a slide rail 102 arranged on the top of the support frame. Specifically, Figure 3 As shown, the slide rail 102 is composed of a long slide rail and a short slide rail. The support frame is also divided into two supporting parts, supporting the long slide rail and the short slide rail respectively.

[0089] Most steel bar raw materials are 12m and 9m. Therefore, in some specific embodiments, when processing 12m steel bars, the ground rail is relatively long. A short ground rail (support frame and slide rail) and a long ground rail (support frame and slide rail) can be spliced ​​together through bolts to increase the moving range of the mobile thread rolling machine.

[0090] In order to ensure that the mobile thread rolling machine moves simultaneously with the telescopic support assembly during the movement and extension process, in one embodiment, a gear is installed at the bottom of the mobile thread rolling machine, and a rack is installed on the inner side of the slide rail of the ground rail assembly shared with the mobile thread rolling machine, so that the mobile thread rolling machine and the telescopic support assembly can move synchronously on the slide rail.

[0091] The main function of the telescopic support assembly 200 is to support steel bars. The telescopic length can support steel bars of different lengths. In order to achieve better telescopic and support, the telescopic support assembly 200 of a preferred embodiment of the present invention is composed of a first fixed bracket 201, a second fixed bracket 202, an outer bracket 203, an inner bracket 204 and a connecting plate 205. Specifically, Figure 4 As shown, the first fixing bracket 201 is mounted on one end of the floor rail assembly 100 and is fixedly connected to the movable thread rolling device 300 . No roller is provided at the bottom thereof and the first fixing bracket 201 has no contact with the slide rail.

[0092] The second fixed bracket 202 is also mounted on the other end of the floor rail assembly 200 and is fixedly connected to the fixed thread rolling device 400. The outer bracket 203 and inner bracket 204 are mounted on the floor rail assembly 100 at intervals, located between the first fixed bracket 201 and the second fixed bracket 202. Guide wheel assemblies are installed at the bottom of the outer bracket 203 and the inner bracket 204 to enable movement on the floor rail assembly.

[0093] A plurality of connecting plates 205 connect the first fixing bracket 201 , the second fixing bracket 202 , the outer bracket 203 , and the inner bracket 204 together. The connecting plates are connected by hinges, and the connecting plates are also connected to other parts by hinges.

[0094] In order to further enhance the telescopic effect, in a preferred embodiment, the guide wheels at the bottom of the outer bracket 203 and the inner bracket 204 are installed relative to each other. This design can ensure that the distance between the outer bracket and the inner bracket is minimized when the telescopic support assembly is retracted.

[0095] Furthermore, in a preferred embodiment, the structures of the outer bracket 203 and the inner bracket 204 are substantially similar, such as Figure 5 and Figure 6 As shown, the outer support 203 is composed of an outer frame body 2031 and an outer guide wheel group 2032. The outer frame body 2031 is composed of multiple steel pipes and is in the shape of a "mouth". The outer guide wheel group 2032 is installed at the bottom of the two vertical steel pipes of the outer support 2031.

[0096] The inner support 204 is composed of an inner frame body 2041 and an inner guide wheel group 2042. The inner frame body 2041 is slightly different from the outer frame body 2031. A horizontal steel pipe is added to the bottom of the outer frame body 2031, and the inner guide wheel group 2042 is installed at both ends of the horizontal steel pipe.

[0097] This design allows the outer guide wheel set 2032 of the outer bracket 203 to be clamped from the outside of the slide rail, and the inner guide wheel set 2042 of the outer bracket 203 to be clamped from the inside of the slide rail, ensuring that the distance between the outer bracket and the inner bracket is minimized.

[0098] Furthermore, in a preferred embodiment, the outer guide wheel group 2032 and the inner guide wheel group 2042 have the same structure, including two layers of guide wheels. The first layer of guide wheels is two rollers 21, which are symmetrically distributed around the symmetry axis of the inner frame 2041 or the outer frame 2031. The second layer of guide wheels is two conical wheels 22, such as Figure 7 and 8 The ribs on the rollers can prevent the outer bracket from running off the track, and the tapered wheels fit in with the lower surface of the slide rail of the ground rail assembly, mainly to limit the outer bracket from rolling over. Figure 12 shown.

[0099] In addition to their telescopic function, the outer and inner supports 203 and 204 also support the rebar. Therefore, in a preferred embodiment, a guide plate 206 is mounted on top of the outer and inner supports 203 and 204. This guide plate features a V-shaped notch that effectively positions the rebar for its initial entry into the telescopic support assembly. Opposite the guide plate 206, an inclined transition plate is also installed to facilitate the sliding of finished rebar into the finished product rack.

[0100] The processing of steel bars includes at least three steps: rib stripping, thread rolling, and grinding and deburring. In order to save turnover time, in a preferred embodiment of the present invention, a rib stripping machine, a grinding machine, etc. are integrated into the multi-specification steel bar thread rolling processing device of the present invention. Specifically, a rib stripping machine 303 and a grinding machine 301 are installed on a mobile thread rolling machine or a fixed thread rolling machine, and are arranged side by side with the thread rolling machine 302, such as Figure 15 As shown, rib stripping, thread rolling and grinding are performed in sequence.

[0101] Furthermore, in some preferred embodiments, in order to improve the accuracy of rib stripping, an additional process is added between rib stripping and thread rolling, that is, measuring the diameter of the steel bar after rib stripping.

[0102] Therefore, it can be seen from the above that the steel bar needs to move multiple times from entering the telescopic support assembly to leaving it, and reach multiple processing positions to correspond to the corresponding processing procedures (rib stripping, thread rolling, grinding or diameter measurement, etc.). When the steel bar needs to enter the next processing position from the current processing position, the clamps at both ends will first lift the steel bar from the current processing position, and then move horizontally until it reaches the next processing position. However, since the steel bar is long, it will undergo elastic deformation and the middle will be lower than the two ends. Therefore, in a preferred embodiment of the present invention, an outer bracket or an inner bracket between the first fixed bracket and the second fixed bracket is selected as an auxiliary bracket. When the steel bar moves to the work station, the middle section of the auxiliary steel bar is lifted to prevent the thin steel bar from deforming, which causes the clamps at both ends to be unable to clamp it, thereby causing the distance between the two ends of the steel bar and their respective thread rolling heads to change. Specifically, as Figure 9 As shown, at least two lifting cylinders 207 are installed on the support frame, and a support rod 208 is set on the top of the support frame. When the clamp lifts the two ends of the steel bar, the two cylinders on the auxiliary bracket will also extend, lifting the middle position of the steel bar. At this time, the clamp will then drag the steel bar horizontally to the next station. When the clamps on both sides place the steel bar to the next station, the cylinders on the auxiliary bracket will also retract at the same time.

[0103] The clamping mechanism for lifting and translating the steel bars in the above embodiments can be implemented using existing technologies. For example, in some specific embodiments, the steel bar clamping and translating mechanism with application number 202221242690.8 can be used.

[0104] The elastic deformation of the steel bar can also lead to another situation: when the steel bar is at the unloading position, due to the steel bar being too long, it will be elastically deformed and the middle part will bend, resulting in the telescopic support components falling off at both ends but the middle part still remaining on the auxiliary bracket. Therefore, in another preferred embodiment of the present invention, a push plate 209 is added to the auxiliary bracket position and installed in the slide groove opened at the top of the auxiliary bracket, equipped with a push-pull cylinder 210 to provide driving force, such as Figure 8 and Figure 9When the steel bar is at the unloading position, while the clamp pushes the ends of the steel bars on both sides to fall, the push-pull cylinder of the auxiliary support also pushes the push plate 209 to push the steel bar off the auxiliary support.

[0105] The thread rolling machine 300 is driven by a drive unit 700. To ensure precise movement along the ground rail, one embodiment of the present invention incorporates a motor, a reducer, a gear, and a rack as the drive unit 700. The rack is mounted to the bottom of the rail. The motor, reducer, and gear are mounted on the thread rolling machine, with the gear meshing with the rack. The motor outputs driving force, and the reducer, gear, and rack form a transmission mechanism that moves the thread rolling machine.

[0106] In addition, in some preferred embodiments, a length detector 800 is provided to address the inevitable slight error between the actual length of the incoming steel bar and the specified incoming length. Figure 13 、 Figure 14 and Figure 15 As shown, the length detector 800 is installed on both the mobile and fixed thread rolling machines and comprises a measuring cylinder 801, a measuring push plate 802, and an electronic ruler 803. When a rebar enters the testing position, the cylinder extends the measuring push plate 802. The electronic ruler 803, connected to the measuring push plate 802, records the distance the cylinder extends, which can be used to calculate the distance between the end of the rebar and the thread rolling machine. This distance is used to adjust the front-to-back position of the thread rolling head of the thread rolling machine to meet the required thread rolling length.

[0107] Of course, in some integrated equipment, rib stripping and thread rolling are arranged in a front-to-back sequence, and the rib stripping machine and the thread rolling machine are aligned. Therefore, in some other embodiments, when adjusting the front-to-back position of the thread rolling head, the front-to-back position of the rib stripping head is also adjusted to ensure consistency in the length of the rib stripping and thread rolling.

[0108] Rebar processing is essentially a batch operation. To achieve automation, a preferred embodiment of the present invention includes an operating screen, a length detector, and a controller. The operating screen is connected to the controller, and the length detector is installed on both the fixed and mobile thread rolling machines. The controller is connected to the motor of the drive unit. The overall workflow is as follows:

[0109] If the length of the incoming steel bar is known, enter the length into the operation screen.

[0110] The controller receives the length and controls the movement of the mobile thread rolling machine so that the distance between the mobile thread rolling machine and the fixed thread rolling machine meets the length processing requirement.

[0111] There is a certain error between the actual length of the incoming steel bars and the input length. Use a length detector to measure the actual length of the steel bars, and adjust the distance between the rolling head of the thread rolling machine and the end of the steel bars to ensure that the rolled length of each steel bar meets the processing requirements.

[0112] The above describes specific embodiments of the present invention. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art may make various variations or modifications within the scope of the claims without affecting the essence of the present invention. The above preferred features may be used in any combination as long as they do not conflict with each other.

Claims

1. A multi-specification steel bar thread rolling processing device, characterized in that: include: A ground rail assembly, wherein the ground rail assembly is installed on the ground; A telescopic support assembly is mounted on the floor rail assembly and is extendable in length, suitable for thread rolling of steel bars of various lengths and specifications; a mobile thread rolling machine connected to one end of the telescopic support assembly and movably mounted above the floor rail assembly; A fixed thread rolling machine, the fixed thread rolling machine is connected to the other end of the telescopic support assembly and is fixedly installed on the ground; A driving unit is installed on the mobile thread rolling machine and the ground rail assembly, and drives the mobile thread rolling machine to move along the ground rail assembly.

2. A multi-specification steel bar thread rolling processing device according to claim 1, characterized in that: The ground rail assembly comprises: A support frame, wherein the support frame is fixed to the ground; A slide rail is installed on the top of the support frame; wherein the slide rail includes a spliced ​​long slide rail and a short slide rail.

3. The multi-specification steel bar thread rolling processing device according to claim 1, characterized in that: The telescopic support assembly comprises: a first fixed bracket, the first fixed bracket being fixedly connected to the mobile thread rolling machine; a second fixed bracket, the second fixed bracket being fixedly connected to the fixed thread rolling machine; an outer bracket, wherein a plurality of the outer brackets are disposed between the first fixing bracket and the second fixing bracket, and the bottoms of the outer brackets are movably connected to the floor rail assembly; Inner brackets, wherein a plurality of the inner brackets are disposed between the first fixed bracket and the second fixed bracket, and the bottoms of the inner brackets are movably connected to the floor rail assembly; the inner brackets and the outer brackets are spaced apart from each other; Connecting plates, multiple connecting plates connect the first fixed bracket, the outer bracket, the inner bracket, and the second fixed bracket together; the connecting plates, as well as the connecting plates and each bracket, are all connected by hinges.

4. A multi-specification steel bar thread rolling processing device according to claim 3, characterized in that: The outer bracket comprises: an outer frame, the outer frame forming a frame-like structure; External guide wheel groups, two of which are respectively installed on both sides of the bottom of the outer frame; The inner support comprises: An inner frame, wherein the inner frame forms a frame structure, Inner guide wheel groups, two of the inner guide wheel groups are respectively installed on both sides of the bottom of the inner frame; The outer guide wheel group and the inner guide wheel group are oriented in opposite directions and are installed relative to each other.

5. A multi-specification steel bar thread rolling processing device according to claim 4, characterized in that: The outer guide wheel group and the inner guide wheel group have the same structure, both including two layers of guide wheels, wherein: The first layer of guide wheels is two rollers, which are symmetrically installed on both sides of the bottom of the outer frame / inner frame; The second layer of guide wheels is two conical wheels, and the two conical wheels are correspondingly installed under the two rollers; The slide rail of the floor rail assembly is inserted between the roller and the tapered wheel; the roller is provided with a rib to prevent the inner and outer brackets from deviating; the tapered wheel fits against the lower surface of the slide rail to limit the inner and outer brackets from tipping over.

6. A multi-specification steel bar thread rolling processing device according to claim 3, characterized in that: The outer bracket / inner bracket located between the first fixing bracket and the second fixing bracket is an auxiliary bracket; The auxiliary bracket comprises: An auxiliary frame, with a guide wheel assembly installed at the bottom of the auxiliary frame; a supporting rod, the supporting rod being arranged above the auxiliary frame; A lifting cylinder, wherein a plurality of the lifting cylinders are installed on the auxiliary frame, and the telescopic rods of the lifting cylinders support the supporting rod.

7. A multi-specification steel bar thread rolling processing device according to claim 6, characterized in that: A slide groove is provided on the top of the support rod; The auxiliary bracket further includes: A push-pull cylinder, the push-pull cylinder being laterally arranged inside the supporting rod; A push plate is arranged in the slide groove, a part of the push plate is higher than the support rod, and the other part is connected to the push-pull cylinder.

8. The multi-specification steel bar thread rolling processing device according to claim 1, characterized in that: The driving unit includes: A motor, wherein the motor is installed on the mobile thread rolling machine; A reducer connected to an output end of the motor; A gear, the gear being fixed to an output end of the reducer; A rack is installed on the ground rail assembly.

9. The multi-specification steel bar thread rolling processing device according to claim 1, characterized in that: The movable thread rolling machine and the fixed thread rolling machine are both equipped with a length detector; the length detector comprises: A detection cylinder, wherein the output end of the detection cylinder is arranged along the length direction of the steel bar; A detection push plate connected to the output end of the detection cylinder; An electronic ruler is connected to the detection push plate.

10. The multi-specification steel bar thread rolling processing device according to claim 1, characterized in that: Also includes: A raw material rack, located on one side of the ground rail assembly, for storing steel bar raw materials; The finished product rack is located on one side of the ground rail assembly and is used to stack the finished steel bars that have completed the thread rolling process.

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