Fixing lug accurate positioning and mounting device for arc-shaped steel plate

Abstract

The utility model relates to a mounting and positioning device, and provides a fixing lug accurate positioning and mounting device for an arc-shaped steel plate, which comprises a bracket attached to the inner wall of the steel plate, a pair of first limiting blocks arranged on the same side of the bracket, a pair of positioning devices respectively arranged at two ends of the bracket, and a pair of fixing lugs respectively connected with the pair of positioning devices, each fixing lug comprises a connecting piece attached to the inner wall of the steel plate, a plurality of first connecting holes formed in the connecting piece, a connecting plate perpendicular to the side, away from the steel plate, of the connecting piece, and a connecting hole formed in the connecting plate. The positioning device comprises a positioning plate connected with the support and a positioning shaft which is horizontally arranged and connected with the positioning plate. The positioning shaft penetrates through the connecting hole; according to the accurate positioning and mounting device for the fixing lugs of the arc-shaped steel plate, the fixing lugs can be better and accurately positioned, and the mounting accuracy of the fixing lugs on the steel plate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of installation and positioning devices, in particular to a precise positioning and installation device for fixing ears of arc-shaped steel plates. Background Art

[0002] During operation, shield tunnels frequently experience structural deformation due to factors such as surrounding rock pressure, groundwater erosion, and external construction disturbances. A common method for addressing shield tunnel structural deformation is to reinforce the interior with a steel lining. Specifically, multiple curved steel plates conforming to the tunnel's contours are installed within the shield tunnel to form a reinforcing steel ring. As related technologies mature, intelligent robotic arms are being used in tunnel steel ring reinforcement to replace manual labor in grasping, transporting, and securing the plates.

[0003] Currently, conventional robotic arms primarily use electromagnets to pick up steel plates. However, these devices are prone to accidents when power is unstable, necessitating mechanical reinforcement. This is typically achieved by installing mounting ears on the steel plate and securing them with safety pins on the gripper. Traditional mounting methods make it difficult to secure the mounting ears to the curved steel plate. Furthermore, the mounted ears can tilt at varying angles, making them difficult to adapt to the robotic arm gripper. Therefore, it is necessary to improve the mounting accuracy of the mounting ears on the steel plate. Utility Model Content

[0004] The purpose of the utility model is to provide a precise positioning and installation device for fixing ears of arc-shaped steel plates, which can better accurately position the fixing ears and improve the installation accuracy of the fixing ears on the steel plates.

[0005] The utility model is achieved through the following technical solutions: the utility model is a device for precisely positioning and installing fixing ears of arc-shaped steel plates, comprising a bracket attached to the inner wall of the steel plate, a pair of first limit blocks arranged on the same side of the bracket, a pair of positioning devices respectively arranged at both ends of the bracket, and a pair of fixing ears respectively connected to the pair of positioning devices; the fixing ears include a connecting piece attached to the inner wall of the steel plate, a plurality of first connecting holes opened on the connecting piece, a connecting plate arranged perpendicular to the connecting piece on a side away from the steel plate, and a connecting hole opened on the connecting plate; the positioning device includes a positioning plate connected to the bracket, and a positioning shaft arranged horizontally and connected to the positioning plate; the positioning shaft is arranged through the connecting hole; a pair of first limit blocks abut against the same side of the steel plate, one of the positioning plates is provided with a second limit block, and the second limit block abuts against one end of the steel plate.

[0006] Furthermore, a limiting ring is fixedly provided on the positioning shaft, and the limiting ring abuts against the side of the connecting plate.

[0007] Furthermore, a pin is provided on one side of the limiting ring close to the connecting plate, and a pin hole is provided on the connecting plate, and the pin is detachably inserted into the pin hole.

[0008] Furthermore, a sleeve is sleeved on the positioning shaft, and a nut is threadedly connected to the end of the positioning shaft; the sleeve abuts against the side of the connecting plate away from the limiting ring, and the nut abuts against the side of the sleeve away from the connecting plate.

[0009] Furthermore, a fastening bolt is inserted into the first connecting hole, and the fastening bolt is connected to the steel plate; a plurality of second connecting holes are provided on the connecting plate, and the inner wall of the second connecting hole is threadedly connected with a top screw, and the top screw abuts against the inner wall of the steel plate.

[0010] Furthermore, a first through hole is opened on one of the connecting plates along its length direction, and the second limit block is slidably arranged in the first through hole; a second through hole is opened on the side wall of the first through hole, and an adjusting bolt is provided in the second through hole, and the adjusting bolt is threadedly connected to the second limit block.

[0011] Furthermore, a pair of handles are provided on a side of the bracket away from the steel plate.

[0012] The technical solution of the present invention has at least the following advantages and beneficial effects: the present invention is used for the precise positioning and installation device of the fixing ear of the arc-shaped steel plate. When in use, the bracket is first attached to the inner wall of the steel plate, and the first limit block and the second limit block are respectively abutted against the side of the steel plate, and the position of the bracket is determined by the first limit block and the second limit block. Then the connecting piece is attached to the steel plate and moved to the positioning shaft, so that the positioning shaft passes through the connecting hole on the connecting plate, and the connecting piece or the connecting plate abuts against the positioning plate, and the fixing ear is fixed by the positioning shaft and the positioning plate. Then, the connecting piece can be fixed to the steel plate with bolts, or the connecting piece can be directly welded to the steel plate. The position of the fixing ear fixed in this way is more precise, and even if a robotic arm is used for grabbing, it can be efficiently and accurately automatically positioned. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 A schematic diagram of the structure of the precise positioning and installation device for fixing ears of arc-shaped steel plates provided by an embodiment of the utility model when in use;

[0015] Figure 2 A schematic diagram of the structure of a device for accurately positioning and installing fixing ears for curved steel plates provided in an embodiment of the present utility model;

[0016] Figure 3 A schematic structural diagram of a positioning device provided in an embodiment of the present utility model;

[0017] Figure 4 A schematic diagram of the structure of the positioning device provided by an embodiment of the utility model after being unfolded;

[0018] Figure 5 A schematic structural diagram of the fixing ear portion provided in an embodiment of the present utility model;

[0019] Figure 6 for Figure 1 Enlarged view of part A.

[0020] Icon: 11-bracket, 12-first limit block, 13-handle, 14-steel plate, 20-positioning device, 21-positioning plate, 22-positioning shaft, 23-limiting ring, 24-pin shaft, 25-sleeve, 26-nut, 27-first through hole, 28-second through hole, 29-second limit block, 210-adjusting bolt, 30-fixing ear, 31-connecting plate, 32-connecting plate, 33-pin hole, 34-top screw, 35-fastening bolt. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0024] In the description of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0025] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0026] Example

[0027] The following is further described in conjunction with specific embodiments. Figure 1 -Attached Figure 6As shown, the precise positioning and installation device for the fixing ears of the arc-shaped steel plate of this embodiment includes a bracket 11 attached to the inner wall of the steel plate 14, a pair of first limit blocks 12 arranged on the same side of the bracket 11, a pair of positioning devices 20 respectively arranged at both ends of the bracket 11, and a pair of fixing ears 30 respectively connected to the pair of positioning devices 20; the fixing ears 30 include a connecting piece 31 attached to the inner wall of the steel plate 14, a plurality of first connecting holes opened on the connecting piece 31, a connecting plate 32 arranged on a side away from the steel plate 14 (perpendicular to the connecting piece 31), and a connecting hole opened on the connecting plate 32; the positioning device 20 includes a positioning plate 21 connected to the bracket 11, and a positioning shaft 22 arranged horizontally and connected to the positioning plate 21; the positioning shaft 22 is arranged through the connecting hole; a pair of first limit blocks 12 abut against the same side of the steel plate 14, one of the positioning plates 21 is provided with a second limit block 29, and the second limit block 29 abuts against one end of the steel plate 14. Specifically, when in use, the bracket 11 is first attached to the inner wall of the steel plate 14, and the first limit block 12 and the second limit block 29 are respectively abutted against the side edges of the steel plate 14, and the position of the bracket 11 is determined by the first limit block 12 and the second limit block 29. Then, the connecting piece 31 is attached to the steel plate 14 and moved to the positioning shaft 22, so that the positioning shaft 22 passes through the connecting hole on the connecting plate 32, and the connecting piece 31 or the connecting plate 32 abuts against the positioning plate 21, and the fixing ear 30 is fixed by the positioning shaft 22 and the positioning plate 21. Then, the connecting piece 31 can be fixed to the steel plate 14 with bolts, or the connecting piece 31 can be directly welded to the steel plate 14. The position of the fixing ear 30 fixed in this way is more precise, and even if a robotic arm is used for grasping, it can be efficiently and accurately automatically positioned.

[0028] In this embodiment, a retaining ring 23 is fixedly mounted on the positioning shaft 22, abutting the side of the connecting plate 32. A pin 24 is mounted on the side of the retaining ring 23 near the connecting plate 32. The connecting plate 32 is provided with a pin hole 33, into which the pin 24 is removably inserted. Specifically, by placing the connecting plate 32 against the retaining ring 23 and inserting the pin 24 into the pin hole 33, the fixing ear 30 can be better positioned.

[0029] In this embodiment, a sleeve 25 is sleeved on the positioning shaft 22, and a nut 26 is threadedly connected to the end of the positioning shaft 22. The sleeve 25 abuts against the side of the connecting plate 32 away from the retaining ring 23, and the nut 26 abuts against the side of the sleeve 25 away from the connecting plate 32. Specifically, by abutting the sleeve 25 against the connecting plate 32 and then tightening the sleeve 25 with the nut 26, the fixing ear 30 can be better prevented from shaking.

[0030] In this embodiment, a fastening bolt 35 is inserted into the first connecting hole, and the fastening bolt 35 is connected to the steel plate 14. The connecting piece 31 is provided with a plurality of second connecting holes, and the inner walls of the second connecting holes are threadedly connected to the top screw 34, and the top screw 34 abuts the inner wall of the steel plate 14. Specifically, after the position of the fixing ear 30 is determined by the positioning shaft 22 and other structures, the top screw 34 is screwed so that the top screw 34 abuts the inner wall of the steel plate 14. The top screw 34 can support the fixing ear 30. In this way, the connecting piece 31 does not need to be completely attached to the steel plate 14, and a certain angle can be formed between the two. Then, the steel plate 14 can be drilled through the first connecting hole. After drilling, the connecting piece 31 and the steel plate 14 can be connected by the fastening bolt 35.

[0031] In this embodiment, a first through hole 27 is formed along the length of one of the connecting plates 32, and a second stopper 29 is slidably disposed in the first through hole 27. A second through hole 28 is formed on the side wall of the first through hole 27, and an adjustment bolt 210 is disposed in the second through hole 28. The adjustment bolt 210 is threadedly connected to the second stopper 29. Specifically, for steel plates 14 of uniform size, the second stopper 29 can be fixed to the connecting plate 32. However, for steel plates 14 of various sizes, the position of the second slider can be adjusted to accommodate the size. The second stopper 29 can be activated by loosening the adjustment bolt 210. After moving to a desired position, the second stopper 29 can be fixed by tightening the adjustment bolt 210.

[0032] In this embodiment, a pair of handles are further provided on one side of the bracket 11 away from the steel plate 14. Specifically, the handles are mainly for easy holding by human hands.

[0033] In summary, the precise positioning and installation device for the fixing ears of the curved steel plate of the present embodiment is as follows: when in use, the bracket 11 is first attached to the inner wall of the steel plate 14, and the first limit block 12 and the second limit block 29 are respectively abutted against the side edges of the steel plate 14, and the position of the bracket 11 is determined by the first limit block 12 and the second limit block 29. Then, the connecting piece 31 is attached to the steel plate 14 and moved to the positioning shaft 22, so that the positioning shaft 22 passes through the connecting hole on the connecting plate 32, and the connecting piece 31 or the connecting plate 32 abuts against the positioning plate 21, and the fixing ear 30 is fixed by the positioning shaft 22 and the positioning plate 21. Then, the connecting piece 31 can be fixed to the steel plate 14 with bolts, or the connecting piece 31 can be directly welded to the steel plate 14. The position of the fixing ear 30 fixed in this way is more precise, and even if a robotic arm is used for grasping, it can be efficiently and accurately automatically positioned.

[0034] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A device for accurately positioning and installing fixed ears for curved steel plates, characterized by: The invention comprises a bracket (11) attached to the inner wall of a steel plate (14), a pair of first limit blocks (12) arranged on the same side of the bracket (11), a pair of positioning devices (20) respectively arranged at both ends of the bracket (11), and a pair of fixing ears (30) respectively connected to the pair of positioning devices (20); The fixing ear (30) includes a connecting piece (31) attached to the inner wall of the steel plate (14), a plurality of first connecting holes opened on the connecting piece (31), a connecting plate (32) arranged perpendicular to the connecting piece (31) and away from the steel plate (14), and a connecting hole opened on the connecting plate (32); The positioning device (20) comprises a positioning plate (21) connected to the bracket (11), and a positioning shaft (22) arranged horizontally and connected to the positioning plate (21); the positioning shaft (22) is arranged through the connecting hole; A pair of the first limiting blocks (12) abut against the same side of the steel plate (14), and a second limiting block (29) is provided on one of the positioning plates (21), and the second limiting block (29) abuts against one end of the steel plate (14).

2. The precise positioning and installation device for fixing ears of curved steel plates according to claim 1, characterized in that: A limiting ring (23) is fixedly provided on the positioning shaft (22), and the limiting ring (23) abuts against the side of the connecting plate (32).

3. The precise positioning and installation device for fixing ears of curved steel plates according to claim 2, characterized in that: A pin shaft (24) is provided on one side of the limiting ring (23) close to the connecting plate (32), and a pin hole (33) is provided on the connecting plate (32). The pin shaft (24) is detachably inserted into the pin hole (33).

4. The precise positioning and installation device for fixing ears of curved steel plates according to claim 2, characterized in that: The positioning shaft (22) is sleeved with a sleeve (25), and the end of the positioning shaft (22) is threadedly connected with a nut (26); The sleeve (25) abuts against a side of the connecting plate (32) away from the limiting ring (23), and the nut (26) abuts against a side of the sleeve (25) away from the connecting plate (32).

5. The precise positioning and installation device for fixing ears of curved steel plates according to claim 1, characterized in that: A fastening bolt (35) is inserted into the first connecting hole, and the fastening bolt (35) is connected to the steel plate (14); a plurality of second connecting holes are provided on the connecting piece (31), and a top screw (34) is threadedly connected to the inner wall of the second connecting hole, and the top screw (34) abuts against the inner wall of the steel plate (14).

6. The precise positioning and installation device for fixing ears of curved steel plates according to claim 1, characterized in that: A first through hole (27) is provided on one of the connecting plates (32) along its length direction, and the second limiting block (29) is slidably arranged in the first through hole (27); a second through hole (28) is provided on the side wall of the first through hole (27), and an adjusting bolt (210) is provided in the second through hole (28), and the adjusting bolt (210) is threadedly connected to the second limiting block (29).

7. The precise positioning and installation device for fixing ears of curved steel plates according to claim 1, characterized in that: A pair of handles are also provided on one side of the bracket (11) away from the steel plate (14).

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