A precision length-setting device for bar anchor rods.

Abstract

This utility model belongs to the field of metal processing technology and discloses a precise length-setting device for bar anchor rod steel bars. It includes a fixed frame with a square groove inside. A rotating shaft is fixed inside the square groove, and a lead screw is fixed to the rear end face of the rotating shaft. A motor is fixed to the rear end face of the lead screw, and a nut is spirally attached to the outside of the lead screw. Through the lead screw and nut, the motor drives the lead screw to rotate, and the nut moves linearly along the axis of the lead screw. By controlling the rotation angle and number of rotations of the motor, the movement distance of the nut can be precisely controlled, thereby achieving precise length-setting of bar anchor rod steel bars. This device can meet high length-setting accuracy requirements, withstand large axial and radial loads, stably support and transmit bar anchor rod steel bars, and ensure that the length-setting process will not result in deformation or damage due to force. It is suitable for length-setting bar anchor rod steel bars of different specifications and weights.

Description

Technical Field

[0001] This utility model belongs to the field of metal processing technology, specifically a device for precise length setting of bar anchor rod steel bars. Background Technology

[0002] In the production and processing of bar anchor bolt steel bars, the sizing accuracy directly affects the safety of engineering construction and the material utilization rate. Traditional sizing methods mostly rely on manual measurement and marking or simple mechanical limiters, which suffer from problems such as large positioning errors, low operating efficiency, and high labor intensity. Manual operation is easily affected by human factors, causing the bar length deviation to exceed the allowable range. This makes it impossible to accurately match the construction requirements during subsequent installation, not only wasting materials but also potentially creating engineering safety hazards. Simple mechanical devices lack flexible adjustment capabilities, making it difficult to adapt to the sizing requirements of different specifications of bars. Moreover, long-term use can easily lead to component wear, further reducing sizing accuracy. With the increasing demand for anchor bolt steel bars in mining, tunnel construction, and other fields, the requirements for their sizing accuracy and production efficiency are also constantly increasing. Traditional sizing devices can no longer meet the needs of modern production. Therefore, there is an urgent need to develop a bar anchor bolt steel bar sizing device that is structurally stable, easy to adjust, and has precise positioning. Through automated control and precise limit structure design, human intervention can be reduced, sizing accuracy and production efficiency can be improved, material waste can be reduced, and high-quality anchor bolt steel bar products can be provided for engineering construction, promoting the technological upgrading and development of related industries.

[0003] Meanwhile, a bar length measuring device with announcement number CN222579144U is disclosed, which relates to the field of bar production equipment. It includes a fixed baffle, a 9-meter scale, a 12-meter scale, a support base plate, and a side baffle. The bottom of the side baffle is installed on the support base plate, and a fixed baffle is fixedly installed on one end of the support base plate and the side baffle. The 9-meter scale and the 12-meter scale are installed on the inner side wall of the side baffle.

[0004] During use, some measuring devices in the aforementioned bar length measuring device may be affected by the precision of the mechanical structure, such as the manufacturing precision and wear of the lead screw and nut transmission pair, which can lead to certain errors in the measurement results. In addition, if the roller diameter measurement method is used, it may not be able to properly handle the relative slippage of the same steel bar on the same finishing stand and the influence of the wear of the rolling groove on the linear speed of the finished product, thereby reducing the measurement accuracy.

[0005] Therefore, a precise length-measuring device for bar anchor rod steel bars is proposed to address the above problems. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides a precise length-setting device for bar anchor rod steel bars, which has the advantages of convenient and efficient operation, strong adaptability, and high length-setting accuracy.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a precise length-setting device for bar anchor rod steel bars, comprising a fixing frame, a square groove being fitted inside the fixing frame, a rotating shaft being fixed inside the square groove, a lead screw being fixed to the rear end face of the rotating shaft, a motor being fixed to the rear end face of the lead screw, and a nut being spirally fitted to the outside of the lead screw. Through the lead screw and nut, it can withstand large axial and radial loads, stably supporting and transmitting bar anchor rod steel bars, ensuring that the length-setting process will not result in deformation or damage due to force, and is suitable for length-setting bar anchor rod steel bars of different specifications and weights.

[0008] Preferably, a slider is fixedly provided on the outside of the nut, and the slider is slidably disposed with the square groove, and a connecting rod is fixedly provided on the left end face of the slider.

[0009] By adopting the above technical solution, the helical motion of the nut is converted into linear sliding by using a slider.

[0010] Preferably, a limiting block is fixedly provided on the left end face of the connecting rod one, and a fixing frame two is fixedly provided on the outside of the limiting block. A limiting groove is opened inside the fixing frame two, and the limiting groove is slidably arranged with the limiting block.

[0011] By adopting the above technical solution, the movement range of the components can be effectively limited through the limiting blocks and limiting grooves, ensuring the stability and safety of the device during operation and preventing damage caused by excessive movement of the components.

[0012] Preferably, fixing columns are fixedly provided on both the front and rear sides of the fixing frame one, and the fixing columns are fixedly provided with the fixing frame two, and a fixing plate is fixedly provided on the lower end surface of the fixing column.

[0013] By adopting the above technical solution, a stable foundation is provided for the installation of the device through the fixing plate, making it convenient to fix the device in a suitable working position.

[0014] Preferably, a support column is fixedly provided on the lower end face of the fixing plate, and a placement groove is provided inside the fixing plate.

[0015] By adopting the above technical solution, the stability of the fixed plate is increased through the support column, ensuring that the device can maintain balance during operation and reducing the impact of factors such as uneven ground on the device.

[0016] Preferably, a positioning ruler is fixedly provided on the upper end face of the fixing plate, and an adjustment groove is provided on the lower end face of the positioning ruler, with the adjustment groove located above the fixing plate.

[0017] By adopting the above technical solution, a precise measurement basis is provided for the length of the anchor rod steel bar using a positioning ruler. Operators can accurately determine the length of the bar based on the scale on the positioning ruler.

[0018] Preferably, a connecting rod two is fixedly provided on the lower end face of the slider, a positioning block is fixedly provided on the lower end face of the connecting rod two, and a positioning triangle block is fixedly provided on the left end face of the positioning block.

[0019] By adopting the above technical solution, the movement of the slider is transmitted to the positioning block and the positioning triangle block through the second connecting rod, making the positioning more accurate and accurately determining the position of the bar.

[0020] Preferably, a positioning plate is fixedly provided on the left end face of the positioning triangular block, and the positioning plate is slidably disposed with respect to the adjustment groove.

[0021] By adopting the above technical solution, the positioning plate and the adjustment groove further ensure the stability and accuracy of positioning, enabling the positioning plate to slide smoothly in the adjustment groove and achieve precise length setting of the bar.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] 1. This utility model uses a lead screw and a nut. The motor drives the lead screw to rotate, and the nut moves linearly along the axis of the lead screw. By controlling the rotation angle and number of rotations of the motor, the moving distance of the nut can be precisely controlled, thereby achieving accurate length setting of the bar anchor rod steel bar. It can meet high length setting accuracy requirements, can withstand large axial and radial loads, and can stably support and transmit the bar anchor rod steel bar, ensuring that it will not deform or be damaged due to force during the length setting process. It is suitable for length setting of bar anchor rod steel bars of different specifications and weights.

[0024] 2. The second fixing frame of this utility model not only serves as a limiting device, but also provides additional structural support for the entire device, enhancing the overall strength of the device. The placement slot can be used to place some related tools or spare parts, improving the space utilization of the device and facilitating maintenance and management by operators. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the installation structure of the limiting block of this utility model;

[0027] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0028] Figure 4 This utility model Figure 2 Enlarged structural diagram at point B.

[0029] In the diagram: 1. Support column; 2. Fixing plate; 3. Fixing column; 4. Rotating shaft; 5. Lead screw; 6. Square groove; 7. Fixing bracket one; 8. Motor; 9. Fixing bracket two; 10. Limiting groove; 11. Limiting block; 12. Connecting rod one; 13. Nut; 14. Slider; 15. Connecting rod two; 16. Positioning triangular block; 17. Positioning block; 18. Positioning plate; 19. Positioning ruler; 20. Adjustment groove; 21. Placement groove. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] The following describes an embodiment of this utility model based on its overall structure.

[0032] like Figures 1 to 4 As shown, this utility model provides a precise length-setting device for bar anchor rod steel bars, including a fixed frame 7. A square groove 6 is fitted inside the fixed frame 7, and a rotating shaft 4 is fixed inside the square groove 6. A lead screw 5 is fixed to the rear end face of the rotating shaft 4, and a motor 8 is fixed to the rear end face of the lead screw 5. A nut 13 is screwed onto the outside of the lead screw 5. Through the lead screw 5 and nut 13, the motor 8 drives the lead screw 5 to rotate, and the nut 13 moves linearly along the axis of the lead screw 5. By controlling the rotation angle and number of rotations of the motor 8, the movement distance of the nut 13 can be precisely controlled, thereby achieving precise length-setting of bar anchor rod steel bars. This device can meet high length-setting accuracy requirements, withstand large axial and radial loads, stably support and transmit bar anchor rod steel bars, and ensure that the length-setting process will not result in deformation or damage due to force. It is suitable for length-setting bar anchor rod steel bars of different specifications and weights.

[0033] In this embodiment, a slider 14 is fixedly provided on the outside of the nut 13, and the slider 14 is slidably disposed with the square groove 6. A connecting rod 12 is fixedly provided on the left end face of the slider 14. The helical motion of the nut 13 is converted into linear sliding through the slider 14.

[0034] A limiting block 11 is fixedly provided on the left end face of the connecting rod 12. A fixing frame 9 is fixedly provided on the outside of the limiting block 11. A limiting groove 10 is opened inside the fixing frame 9, and the limiting groove 10 is slidably arranged with the limiting block 11. Through the limiting block 11 and the limiting groove 10, the movement range of the component can be effectively limited, ensuring the stability and safety of the device during operation and preventing damage caused by excessive movement of the component.

[0035] Fixing posts 3 are fixed on both the front and rear sides of the fixing frame 7, and the fixing posts 3 are fixedly installed with the fixing frame 9. The lower end face of the fixing post 3 is fixed with a fixing plate 2. The fixing plate 2 provides a stable foundation for the installation of the device, making it easy to fix the device in a suitable working position.

[0036] A support column 1 is fixedly provided on the lower end face of the fixed plate 2, and a placement groove 21 is provided inside the fixed plate 2. The support column 1 increases the stability of the fixed plate 2, ensuring that the device can maintain balance during operation and reducing the impact of uneven ground and other factors on the device.

[0037] A positioning ruler 19 is fixedly provided on the upper end face of the fixing plate 2, and an adjustment groove 20 is provided on the lower end face of the positioning ruler 19. The adjustment groove 20 is located above the fixing plate 2. The positioning ruler 19 provides a precise measurement basis for the length of the bar anchor rod steel bar. The operator can accurately determine the length of the bar according to the scale on the positioning ruler 19.

[0038] A connecting rod 15 is fixedly provided on the lower end face of the slider 14, and a positioning block 17 is fixedly provided on the lower end face of the connecting rod 15. A positioning triangle block 16 is fixedly provided on the left end face of the positioning block 17. The movement of the slider 14 is transmitted to the positioning block 17 and the positioning triangle block 16 through the connecting rod 15, so that the positioning is more accurate and the position of the bar can be accurately determined.

[0039] A positioning plate 18 is fixedly provided on the left end face of the positioning triangular block 16, and the positioning plate 18 is slidably set with the adjustment groove 20. The positioning plate 18 and the adjustment groove 20 further ensure the stability and accuracy of positioning, so that the positioning plate 18 can slide smoothly in the adjustment groove 20 and achieve precise length setting of the bar.

[0040] The working principle and process of a precision length-setting device for bar anchor rods:

[0041] Before starting work, ensure that all components of the device are installed correctly and securely. Check the connections of components such as fixing frame 1 (7), fixing frame 2 (9), fixing plate 2, and support column 1 to ensure they are not loose. Simultaneously, confirm that transmission components such as motor 8, lead screw 5, and nut 13 are operating normally. Place the bar anchor steel in a suitable position so that it can smoothly enter the working area of ​​the length-setting device. Turn on motor 8, which drives lead screw 5 to rotate. Due to the helical engagement between lead screw 5 and nut 13, nut 13 will move linearly along lead screw 5. The slider 14 fixed externally to nut 13 will move along with nut 13, and slide within square groove 6, ensuring the stability of the movement. Sliding block 14, via connecting rod 12, drives limiting block 11 to slide within limiting groove 10, further ensuring the accuracy of the movement. Connecting rod 2 (15) on the lower end face of slider 14 will drive positioning block 17 and positioning triangular block 16 to move. The positioning plate 18 on the 6 slides in the adjustment groove 20 at the lower end of the positioning ruler 19. By observing the position of the positioning plate 18 on the positioning ruler 19, the moving distance of the positioning block 17 and the positioning triangle block 16 can be precisely controlled, thereby achieving precise adjustment of the fixed length of the bar anchor rod steel bar. When the positioning block 17 and the positioning triangle block 16 move to the required fixed length position, the bar anchor rod steel bar is moved along the working path of the device so that one end contacts the positioning triangle block 16. At this time, the length of the bar anchor rod steel bar is the preset fixed length. The bar anchor rod steel bar is cut using a cutting device to complete one fixed length cutting operation. After the cutting is completed, the motor 8 rotates in the reverse direction, driving the lead screw 5 to reverse, so that the nut 13, slider 14 and other components return to the initial position, preparing for the next fixed length cutting. By repeating the above positioning and adjustment, fixed length cutting steps, continuous and precise fixed length cutting of the bar anchor rod steel bar can be achieved.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for precise length measurement of steel bars used in anchor rods, comprising a fixing frame (7), characterized in that: The fixed frame (7) has a square groove (6) inside, a rotating shaft (4) is fixed inside the square groove (6), a lead screw (5) is fixed on the rear end face of the rotating shaft (4), a motor (8) is fixed on the rear end face of the lead screw (5), and a nut (13) is spirally provided on the outside of the lead screw (5).

2. The precise length-setting device for bar anchor rods according to claim 1, characterized in that: The nut (13) is fixedly provided with a slider (14) on the outside, and the slider (14) is slidably disposed with the square groove (6). A connecting rod (12) is fixedly provided on the left end face of the slider (14).

3. The precise length-setting device for bar anchor rod steel bars according to claim 2, characterized in that: A limiting block (11) is fixedly provided on the left end face of the connecting rod (12), and a fixing frame (9) is fixedly provided on the outside of the limiting block (11). A limiting groove (10) is opened inside the fixing frame (9), and the limiting groove (10) and the limiting block (11) are slidably arranged.

4. The precise length-setting device for bar anchor rods according to claim 1, characterized in that: The first fixing frame (7) is fixed with fixing columns (3) on both the front and rear sides, and the fixing columns (3) are fixedly installed with the second fixing frame (9). The lower end face of the fixing column (3) is fixed with a fixing plate (2).

5. The precise length-setting device for bar anchor rod steel bars according to claim 4, characterized in that: The lower end face of the fixing plate (2) is fixedly provided with a support column (1), and the interior of the fixing plate (2) is provided with a placement groove (21).

6. The precise length-setting device for bar anchor rod steel bars according to claim 4, characterized in that: A positioning ruler (19) is fixedly provided on the upper end face of the fixing plate (2), and an adjustment groove (20) is provided on the lower end face of the positioning ruler (19), and the adjustment groove (20) is above the fixing plate (2).

7. The precise length-setting device for bar anchor rods according to claim 2, characterized in that: The lower end face of the slider (14) is fixedly provided with a connecting rod two (15), the lower end face of the connecting rod two (15) is fixedly provided with a positioning block (17), and the left end face of the positioning block (17) is fixedly provided with a positioning triangle block (16).

8. The precise length-setting device for bar anchor rods according to claim 7, characterized in that: The left end face of the positioning triangle block (16) is fixedly provided with a positioning plate (18), and the positioning plate (18) is slidably disposed with the adjustment groove (20).

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