Numerical control sizing device for automatically cutting reinforcing steel bars

Abstract

The utility model relates to the technical field of reinforcing steel bar cutting, in particular to a numerical control sizing device for automatically cutting reinforcing steel bars. The device comprises two guide rails arranged on the top face of a numerically controlled lathe support in parallel, and a rack is arranged on the inner side of one linear guide rail; the reinforcing steel bar channel is arranged on the numerical control lathe bracket; the releasing assembly comprises a bushing mounted at the bottom of the steel bar channel and an air cylinder connected with the bushing; the positioning assembly comprises a positioning mounting plate slidably mounted on the linear guide rail, a driving motor is arranged on the positioning mounting plate, and the output end of the driving motor is downwards connected with the positioning gear; and the detection assembly comprises an in-place detection rod located in the steel bar channel and an in-place detection switch installed on the positioning installation plate, and the air cylinder, the driving motor and the in-place detection switch are in signal connection with the control system. The technical problems that in the prior art, the operation process of suspending steel bar feeding is tedious, transmission efficiency is low, and cutting precision and consistency of steel bars are low are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar cutting, in particular to a numerically controlled sizing device for automatically cutting steel bars. Background Art

[0002] Cutting steel bars to length refers to the process of cutting steel bars to fixed lengths according to project requirements before they leave the factory or at the construction site, to ensure that the length of each steel bar meets the design requirements. In the prior art, steel bars are cut by an automatic cutting mechanism of a straight steel bar cutting machine, which determines the length of the steel bar by setting a positioning baffle on the fixed-length rotating rod. The setting of the positioning baffle depends on a pre-set baffle mounting block, and the position cannot be adjusted arbitrarily.

[0003] In view of the above problems, the patent document with the authorization announcement number CN205702253U discloses a hydraulic wire automatic fixed-length cutting mechanism, in which a ruler rod is arranged behind the shearing knife, a switch valve pulling plate is movably arranged on one side of the ruler rod, and a hydraulic switch device is arranged at one end of the switch valve pulling plate, the hydraulic switch device is located on the right path of the cutting oil cylinder, the shearing knife is connected to the cutting oil cylinder, the switch valve pulling plate is connected to the switch valve shaft of the hydraulic switch device, a fixed-length collision block located on the wire conveying path is installed on the ruler rod, the fixed-length collision block is connected to a synchronously rotating fixed-length shifting block through a fixed-length rotating shaft, and the fixed-length shifting block is connected to the switch valve pulling plate; when the wire reaches a predetermined length during the conveying process, it hits the fixed-length collision block, the fixed-length shifting block and the fixed-length collision block rotate synchronously, driving the switch valve pulling plate to move forward, the switch valve pulling plate pulls the switch valve shaft, so that the oil circuit of the cutting oil cylinder is conducted, and the cutting knife cuts the wire.

[0004] However, in actual use of the above-mentioned automatic fixed-length cutting mechanism, after the steel bar hits the fixed-length collision block, it needs to continue to be transported forward so that the fixed-length collision block can drive the fixed-length shift block to rotate, and then the fixed-length shift block drives the switch valve pulling plate to move forward, and finally pulls the switch valve shaft to synchronously open the cutting cylinder and the clutch cylinder to make the clutch feeding mechanism suspend the conveying of steel bars. The structure of driving the clutch feeding mechanism to suspend the conveying of steel bars is complex and the operation process is cumbersome, which makes its transmission efficiency low, resulting in reduced accuracy of steel bar feeding, and it is very easy to have inaccurate feeding or excessive feeding, which affects the cutting accuracy and consistency of the steel bars. Utility Model Content

[0005] The utility model provides a numerically controlled sizing device for automatically cutting steel bars, so as to solve the technical problems in the prior art that the operation process of suspending steel bar feeding is complicated, the transmission efficiency is low, and the cutting precision and consistency of the steel bars are low.

[0006] In order to solve the above problems, the numerical control sizing device for automatically cutting steel bars provided by the utility model adopts the following technical solutions:

[0007] A numerically controlled sizing device for automatically cutting steel bars, comprising:

[0008] There are two linear guide rails, which are arranged in parallel on the top surface of the CNC lathe support and extend along the length direction of the CNC lathe support, and a rack is arranged on the inner side of one of the linear guide rails;

[0009] A steel bar channel, which is arranged on the CNC lathe support and located outside the linear guide rail, and the extension direction of the steel bar channel is consistent with the extension direction of the linear guide rail;

[0010] A release assembly, which includes a leaking plate installed at the bottom of the steel bar channel, and a cylinder connected to the leaking plate and installed on the CNC lathe bracket, and the cylinder is connected to the control system of the CNC lathe;

[0011] A positioning assembly, comprising a positioning mounting plate slidably mounted on the linear guide rail, a driving motor connected to the control system is arranged on the positioning mounting plate, an output end of the driving motor passes downward through the positioning mounting plate and is connected to a positioning gear, the positioning gear is located between the two linear guide rails and matches the rack;

[0012] The detection component includes an in-place detection rod located in the steel bar channel and an in-place detection switch installed on the positioning mounting plate. A tension spring is arranged between the in-place detection rod and the positioning mounting plate, and the in-place detection switch is connected to the control system signal.

[0013] The beneficial effects of the numerically controlled sizing device for automatically cutting steel bars provided by the utility model are:

[0014] 1) A positioning assembly is installed on a linear guide rail arranged on the surface of a CNC lathe support, an in-place detection rod is installed in a steel bar channel outside the linear guide rail, an in-place detection switch connected to a control system signal is installed on a positioning mounting plate of the positioning assembly, and a tension spring is arranged between the in-place detection rod and the positioning mounting plate. When the steel bar is conveyed in the steel bar channel until it abuts against the in-place detection rod, the in-place detection rod rotates and leaves the detection range of the in-place detection switch. After the control system receives a signal from the in-place detection switch, it immediately stops the continued conveying of the steel bar. After the steel bar is cut, the control system controls the cylinder to drive the leak plate to leave the steel bar channel to make the steel bar fall. When the force of the steel bar on the in-place detection rod disappears, the in-place detection rod can automatically return to its original position under the action of the tension spring and can be detected by the in-place detection switch. There is no need to gradually drive the feeding mechanism to stop feeding by continuing to convey the steel bar. The operation process is simple and the structure is simple, which improves the automation degree of steel bar sizing and ensures the cutting accuracy and the consistency of the length of the cut steel bar.

[0015] 2) By slidingly installing the positioning mounting plate on the linear guide rail, and arranging a driving motor on the positioning mounting plate, connecting the output end of the driving motor with the positioning gear, and arranging the positioning gear between the two linear guide rails and matching with the rack, the driving motor can be used to drive the positioning gear to move in the length direction of the rack, so that the positioning mounting plate slides on the linear guide rail, thereby changing the position of the detection component on the CNC lathe bracket, so that the fixed length of the steel bar can be adjusted more flexibly.

[0016] Through the above arrangement, the utility model effectively solves the technical problems in the prior art that the operation process of suspending steel bar feeding is complicated, the transmission efficiency is low, and the cutting accuracy and consistency of the steel bars are low.

[0017] Furthermore, the in-place detection rod is connected to the positioning mounting plate via a connecting assembly, which includes an L-shaped plate installed on the positioning mounting plate, a first connecting plate is installed on the side of the L-shaped plate facing the in-place detection switch, a second connecting plate perpendicular to the first connecting plate is installed on the first connecting plate, and the in-place detection rod is rotatably installed on the end of the second connecting plate facing away from the first connecting plate.

[0018] Furthermore, one end of the tension spring is connected to the in-position detection rod, and the other end of the tension spring is mounted on the second connecting plate.

[0019] Furthermore, a zero position detection block is installed on the positioning mounting plate, and a zero position detection switch is installed on the CNC lathe bracket. The zero position detection block and the zero position detection switch cooperate to detect whether the positioning mounting plate moves to the zero position.

[0020] Furthermore, the positioning mounting plate is a rectangular plate, and a positioning clamping wheel is installed on each of its four corners. The positioning clamping wheel is located on the outside of the linear guide rail and matches the linear guide rail.

[0021] Furthermore, the four corners of the positioning mounting plate have extension plates extending outward, and the positioning clamping wheel is installed on the extension plates.

[0022] Furthermore, a mounting hole is provided on the extension plate, and a bolt is provided at the center of the horizontal plane of the positioning clamp wheel. The bolt passes through the mounting hole from bottom to top, and the positioning clamp wheel is fixed to the extension plate by a nut screwed onto the bolt.

[0023] Furthermore, two slider groups are installed on the lower surface of the positioning mounting plate, and the two slider groups are respectively installed on the two linear guide rails.

[0024] Furthermore, the driving motor is a servo motor.

[0025] Furthermore, a drag chain bracket is installed on the side of the driving motor, one end of the drag chain is connected to the drag chain bracket, and the other end is installed on the CNC lathe bracket, and the drag chain is used to place the connecting line. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present invention will become easy to understand. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0027] Figure 1 This is a schematic diagram of the structure of the numerically controlled sizing device for automatically cutting steel bars provided by the utility model;

[0028] Figure 2 A schematic diagram of the structure of the positioning component and the detection component of the numerically controlled sizing device for automatically cutting steel bars provided by the utility model;

[0029] Figure 3 for Figure 1 A cross-sectional view of a numerically controlled sizing device for automatically cutting steel bars;

[0030] Figure 4 for Figure 1 A local enlarged schematic diagram of point A in the middle.

[0031] Description of reference numerals:

[0032] 1. Linear guide; 2. CNC lathe bracket; 3. Rack; 4. Steel bar channel; 5. Leakage plate; 6. Cylinder; 7. Positioning mounting plate; 8. Servo motor; 9. Positioning gear; 10. In-place detection rod; 11. In-place detection switch; 12. Tension spring; 13. L-shaped plate; 14. First connecting plate; 15. Second connecting plate; 16. Zero position detection block; 17. Zero position detection switch; 18. Positioning clamp wheel; 19. Extension plate; 20. Bolt; 21. Nut; 22. Slider; 23. Drag chain bracket; 24. Drag chain. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0034] It should be noted that the main idea of ​​the CNC sizing device for automatically cutting steel bars provided by the utility model is: by arranging a linear guide on the CNC lathe bracket, and slidingly arranging the positioning mounting plate on the linear guide, arranging a driving motor on the positioning mounting plate, arranging a rack between the linear guides, and connecting the output end of the driving motor to the positioning gear located between the two linear guides, the driving motor can drive the positioning gear to move in the length direction of the rack, and flexibly adjust the position of the positioning mounting plate on the linear guide, thereby flexibly adjusting the fixed length of the steel bar; by arranging a detection component connected to the positioning mounting plate, the detection component includes an in-place detection rod and an in-place detection switch, when the steel bar is conveyed in the steel bar channel to abut against the in-place detection rod, the in-place detection rod rotates and leaves the detection range of the in-place detection switch, and the control system immediately stops the continued conveying of the steel bar after receiving the signal of the in-place detection switch, and after the steel bar cutting is completed, the control system controls the cylinder to drive the leak plate to open, the leak plate flips downward, the steel bar slides off the steel bar channel, and the steel bar falls, and when the force of the steel bar on the in-place detection rod disappears, the in-place detection rod can automatically return to its original position under the action of the tension spring, and can be detected by the in-place detection switch.

[0035] After introducing the basic principle of the utility model, various non-limiting embodiments of the utility model are specifically introduced below. Any number of elements in the drawings is for illustration and not for limitation, and any naming is only for distinction and does not have any limiting meaning.

[0036] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0037] Embodiment 1 of the numerically controlled sizing device for automatically cutting steel bars provided by the utility model:

[0038] like Figures 1 to 4 As shown, the CNC sizing device for automatically cutting steel bars includes a linear guide rail 1, a steel bar channel 4, a release component, a positioning component and a detection component.

[0039] About the linear guide rails 1 . There are two linear guide rails 1 , which are arranged in parallel on the top surface of the CNC lathe support 2 and extend along the length direction of the CNC lathe support 2 . A rack 3 is arranged on the inner side of one of the linear guide rails 1 .

[0040] About the steel bar channel 4 . The steel bar channel 4 is arranged on the CNC lathe support 2 and is located outside the linear guide rail 1 , and its extension direction is consistent with the extension direction of the linear guide rail 1 .

[0041] About the release assembly. The release assembly includes a leak plate 5 installed at the bottom of the steel bar channel 4 and a cylinder 6 installed on the CNC lathe bracket 2. The number of the cylinders 6 is two, and both cylinders 6 are connected to the control system of the CNC lathe.

[0042] About the positioning assembly. The positioning assembly includes a positioning mounting plate 7 slidably mounted on the linear guide rail 1, and a driving motor connected to the control system is arranged on the positioning mounting plate 7. The output end of the driving motor passes downward through the positioning mounting plate 7 and is connected to the positioning gear 9. The positioning gear 9 is located between the two linear guide rails 1 and matches the rack 3.

[0043] Specifically, two slider groups are installed on the lower surface of the positioning mounting plate 7 . The two slider groups are installed on two linear guide rails 1 , respectively. Each slider group includes two sliders 22 .

[0044] Specifically, the positioning mounting plate 7 is a rectangular plate, and its four corners have extension plates 19 extending outward. A positioning card wheel 18 is installed on each extension plate 19. The positioning card wheel 18 is located on the outside of the linear guide rail 1 and matches the linear guide rail 1. The positioning card wheel 18 and the slider 22 can ensure that the positioning mounting plate 7 can only make a linear motion along the linear guide rail 1.

[0045] Specifically, a mounting hole is opened on the extension plate 19 , and a bolt 20 is installed at the center position of the horizontal plane of the positioning clamp wheel 18 . The bolt 20 passes through the mounting hole from bottom to top, and the positioning clamp wheel 18 is fixed to the extension plate 19 by a nut 21 screwed on the bolt 20 .

[0046] Specifically, the driving motor is a servo motor 8, a drag chain bracket 23 is installed beside the servo motor 8, one end of the drag chain 24 is connected to the drag chain bracket 23, and the other end is installed on the CNC lathe bracket 2 for placing the connecting line.

[0047] About the detection component. The detection component includes an in-place detection rod 10 located in the steel bar channel 4 and an in-place detection switch 11 installed on the positioning installation plate 7, and the in-place detection switch 11 is connected to the control system signal.

[0048] Specifically, the in-place detection rod 10 is connected to the positioning mounting plate 7 through a connecting assembly, which includes an L-shaped plate 13 installed on the positioning mounting plate 7, and a first connecting plate 14 is installed on the side of the L-shaped plate 13 facing the in-place detection switch 11, and a second connecting plate 15 perpendicular to the first connecting plate 14 is installed on the first connecting plate 14, and the in-place detection rod 10 is rotatably installed on the end of the second connecting plate 15 away from the first connecting plate 14.

[0049] Specifically, it also includes a tension spring 12 , one end of which is connected to the upper part of the in-position detection rod 10 , and the other end of which is installed on the second connecting plate 15 .

[0050] In addition, a zero position detection block 16 and a zero position detection switch 17 are also installed on the positioning mounting plate 7. The zero position detection block 16 is installed on the extension plate 19, and the zero position detection switch 17 is installed on the top surface of the CNC lathe bracket 2. The zero position detection block 16 and the zero position detection switch 17 are used to detect whether the positioning mounting plate 7 is moved to the zero point position. The zero point position is the position of the positioning mounting plate 7 when the zero position detection block 16 is in the detection range of the zero position detection switch 17.

[0051] The working principle of the CNC sizing device for automatically cutting steel bars provided by the utility model is as follows: first, the positioning gear 9 is driven by the servo motor 8 to move between the two linear guide rails 1, and at the same time, the positioning clamping wheel 18 slides on the linear guide rail 1, so that the positioning mounting plate 7 moves forward from the zero position detection switch 17 to adjust the fixed length of the steel bar; after the adjustment is completed, the steel bar is transported forward from the steel bar channel 4, and when the steel bar abuts against the in-place detection rod 10, the in-place detection rod 10 rotates and leaves the detection range of the in-place detection switch 11, the tension spring 12 is compressed, and the in-place detection switch 11 is turned off. The signal that the in-place detection rod 10 is out of the detection range is transmitted to the control system, and the control system immediately controls to stop the continued transportation of the steel bars and drives the cutting knife to cut the steel bars. After the steel bars are cut, the control system controls the movement of the cylinder 6, and the cylinder 6 drives the leak plate 5 to flip downward, and the steel bars slide out of the steel bar channel 4. After the steel bars fall, the cylinder 6 drives the leak plate 5 to return to its original position under the control of the control system, and the in-place detection rod 10 also returns to its original position under the action of the elastic restoring force of the tension spring 12 after the steel bars fall. The in-place detection rod 10 is detected by the detection switch 11. The steel bars continue to be transported.

[0052] Embodiment 2 of the numerically controlled sizing device for automatically cutting steel bars provided by the utility model:

[0053] The main difference between it and Example 1 is:

[0054] In Embodiment 1, the number of cylinders is two.

[0055] In this embodiment, the number of cylinders is one or more.

[0056] Embodiment 3 of the numerically controlled sizing device for automatically cutting steel bars provided by the utility model:

[0057] The main difference between it and Example 1 is:

[0058] In Embodiment 1, each slider group includes two sliders.

[0059] In this embodiment, each slider group includes one or more sliders.

[0060] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "width", "horizontal", "top", "bottom", "inside", "outside" and other terms indicating orientation or position relationship are based on the orientation or position relationship shown in the drawings of this specification, which are only for the purpose of facilitating the explanation of the scheme of the utility model and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in a specific orientation. Therefore, the above-mentioned orientation or position relationship terms cannot be understood or interpreted as limitations on the scheme of the utility model.

[0061] In addition, in the description of this specification, “plurality” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

Claims

1. A numerically controlled sizing device for automatically cutting steel bars, characterized in that: include: There are two linear guide rails, which are arranged in parallel on the top surface of the CNC lathe support and extend along the length direction of the CNC lathe support, and a rack is arranged on the inner side of one of the linear guide rails; A steel bar channel, which is arranged on the CNC lathe support and located outside the linear guide rail, and the extension direction of the steel bar channel is consistent with the extension direction of the linear guide rail; A release assembly, which includes a leaking plate installed at the bottom of the steel bar channel, and a cylinder connected to the leaking plate and installed on the CNC lathe bracket, and the cylinder is connected to the control system of the CNC lathe; A positioning assembly, comprising a positioning mounting plate slidably mounted on the linear guide rail, a driving motor connected to the control system is arranged on the positioning mounting plate, an output end of the driving motor passes downward through the positioning mounting plate and is connected to a positioning gear, the positioning gear is located between the two linear guide rails and matches the rack; The detection component includes an in-place detection rod located in the steel bar channel and an in-place detection switch installed on the positioning mounting plate. A tension spring is arranged between the in-place detection rod and the positioning mounting plate, and the in-place detection switch is connected to the control system signal.

2. The CNC sizing device for automatically cutting steel bars according to claim 1 is characterized in that: The in-place detection rod is connected to the positioning mounting plate via a connecting assembly, which includes an L-shaped plate mounted on the positioning mounting plate, a first connecting plate being mounted on the side of the L-shaped plate facing the in-place detection switch, a second connecting plate being mounted on the first connecting plate perpendicular thereto, and the in-place detection rod being rotatably mounted on the end of the second connecting plate facing away from the first connecting plate.

3. The CNC sizing device for automatically cutting steel bars according to claim 2 is characterized in that: One end of the tension spring is connected to the in-position detection rod, and the other end of the tension spring is mounted on the second connecting plate.

4. The CNC sizing device for automatically cutting steel bars according to any one of claims 1 to 3, characterized in that: A zero position detection block is also installed on the positioning mounting plate, and a zero position detection switch is installed on the CNC lathe bracket. The zero position detection block and the zero position detection switch cooperate to detect whether the positioning mounting plate moves to the zero position.

5. The CNC sizing device for automatically cutting steel bars according to any one of claims 1 to 3, characterized in that: The positioning mounting plate is a rectangular plate, and a positioning clamping wheel is installed at each of its four corners. The positioning clamping wheel is located at the outside of the linear guide rail and matches the linear guide rail.

6. The CNC sizing device for automatically cutting steel bars according to claim 5, characterized in that: The four corners of the positioning and mounting plate are provided with extension plates extending outward, and the positioning clamping wheel is mounted on the extension plates.

7. The CNC sizing device for automatically cutting steel bars according to claim 6, characterized in that: The extension plate is provided with a mounting hole, and a bolt is provided at the center of the horizontal plane of the positioning clamp wheel. The bolt passes through the mounting hole from bottom to top, and the positioning clamp wheel is fixed to the extension plate by a nut screwed onto the bolt.

8. The numerically controlled sizing device for automatically cutting steel bars according to any one of claims 1 to 3, characterized in that: Two slider groups are installed on the lower surface of the positioning installation plate, and the two slider groups are respectively installed on the two linear guide rails.

9. The numerically controlled sizing device for automatically cutting steel bars according to any one of claims 1 to 3, characterized in that: The driving motor is a servo motor.

10. The CNC sizing device for automatically cutting steel bars according to any one of claims 1 to 3, characterized in that: A drag chain bracket is installed beside the driving motor, one end of the drag chain is connected to the drag chain bracket, and the other end is installed on the CNC lathe bracket. The drag chain is used to place the connecting line.

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