Clamping device for steel bar extrusion sleeve

Abstract

The clamping device comprises a fixed base and a clamping head, a sliding rail is arranged on the lower surface of a lining trolley, a fixed column is arranged below the fixed base, and an adjusting mechanism is connected to the fixed column. The adjusting mechanism comprises a connecting plate and two mounting plates, a first rotating rod and a second rotating rod are hinged between the mounting plates, a rotating disc is connected to one end of the first rotating rod and one end of the second rotating rod, a driving piece is hinged to the second rotating rod and arranged on the fixing column, and a mechanical arm is arranged on the rotating disc. The clamping head is rotationally connected to the free end of the mechanical arm; the clamping device can move along with the lining trolley in the tunnel direction, the fixed base slides below the lining trolley, whole-course coverage of the tunnel is achieved, the direction and the position of the mechanical arm are adjusted through the adjusting mechanism, and therefore the position of the extrusion sleeve is adjusted, manpower is reduced, the connecting efficiency is improved, and the connecting tightness is improved. The quality of steel bar mechanical connection is guaranteed, and connection precision is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of rebar connection, and in particular to a clamping device for rebar extrusion sleeve. Background Technology

[0002] During secondary lining of a tunnel, the cast-in-place concrete or reinforced concrete lining constructed on the inner side of the initial support requires the connection of reinforcing bars using extrusion sleeves. Extrusion sleeve connection, also known as cold extrusion connection, is a new type of mechanical connection. Its basic principle is as follows: two reinforcing bars to be connected are inserted into a special connecting sleeve, and the sleeve is radially extruded using a crimping machine, causing plastic deformation. This allows the inner wall of the sleeve to embed into the groove between the reinforcing bar ribs, thus achieving the connection between the two reinforcing bars. The axial force borne by the reinforcing bars is mainly transmitted through the shear force between the reinforcing bar ribs and the deformed sleeve.

[0003] Existing extrusion sleeves are generally connected manually on-site, which requires moving the extrusion sleeve to the location of the rebar to be connected. This is labor-intensive and has low connection efficiency. The connection quality is highly dependent on the worker's operation, the connection tightness is poor, and the quality of mechanical connection of rebar is difficult to guarantee. Completing the rebar connection work generally requires multiple people to cooperate at the same time, and the control of the sleeve extrusion position and extrusion force value depends entirely on the worker's operation, resulting in a large degree of randomness in the connection and a large variation in quality. Utility Model Content

[0004] The present invention aims to provide a clamping device for steel bar extrusion sleeves, which can solve the problems of high labor intensity and low connection efficiency of manual operation of extrusion sleeves.

[0005] Therefore, the technical solution adopted by this utility model is as follows: a clamping device for steel bar extrusion sleeve, including a fixed base and a clamping head for clamping the extrusion sleeve, the lower surface of the steel template of the tunnel lining trolley is provided with a slide rail for sliding the fixed base, a fixed column is provided below the fixed base, and an adjustment mechanism for adjusting the position of the clamping head is connected to the fixed column.

[0006] The adjustment mechanism includes a connecting plate disposed below the fixed column and two mounting plates symmetrically disposed on the connecting plate. A first rotating rod and a second rotating rod are hinged between the mounting plates and spaced vertically apart. One end of the first rotating rod and the second rotating rod are connected to a rotating disk, and the other end is hinged between the two mounting plates. The end of the second rotating rod passes through the mounting plate and is hinged to a driving component. The driving component is disposed on the fixed column. A robotic arm is disposed on the rotating disk, and the gripping head is rotatably connected to the free end of the robotic arm.

[0007] As a preferred embodiment of the above solution, the robotic arm is L-shaped, with the vertical section connected to the rotating disk and the horizontal section connected to the gripping head.

[0008] More preferably, the horizontal section of the robotic arm is provided with an operation panel for controlling the extrusion sleeve, and the operation panel is provided with a recording module for recording extrusion pressure and time parameters.

[0009] More preferably, a reinforcing rib is provided at the connection between the horizontal and vertical sections of the robotic arm.

[0010] More preferably, the fixing column is connected to the flange of the connecting plate.

[0011] More preferably, the driving component is a pneumatic cylinder or a hydraulic cylinder.

[0012] More preferably, the fixed base is provided with at least one hinge seat, and the slide rail is provided with a pulley that is hinged to the hinge seat.

[0013] The beneficial effects of this utility model are as follows: the slide rail is set below the lining trolley, the clamping device can move along the tunnel direction with the lining trolley, and the fixed base slides below the lining trolley, thereby achieving full coverage of the tunnel. The direction and position of the robotic arm can be adjusted by adjusting the adjustment mechanism, thereby adjusting the position of the extrusion sleeve, reducing the use of manpower, improving connection efficiency, improving connection tightness, ensuring the quality of mechanical connection of steel bars, and increasing connection accuracy. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] like Figure 1 As shown, a clamping device for a steel bar extrusion sleeve includes a fixed base 1 and a clamping head 3 for clamping the extrusion sleeve 2. The lower surface of the steel template of the tunnel lining trolley is provided with a slide rail 4 for sliding the fixed base 1. A fixed column 5 is provided below the fixed base 1, and an adjustment mechanism for adjusting the position of the clamping head 3 is connected to the fixed column 5.

[0017] The adjustment mechanism includes a connecting plate 6 located below the fixed column 5 and two mounting plates 7 symmetrically arranged on the connecting plate 6. A first rotating rod 8 and a second rotating rod 9, which are arranged vertically and horizontally, are hinged between the mounting plates 7. One end of the first rotating rod 8 and the second rotating rod 9 is connected to a rotating disk 10, and the other end is hinged between the two mounting plates 7. The end of the second rotating rod 9 passes through the mounting plate 7 and is hinged to a driving member 11. The driving member 11 is located on the fixed column 5. A mechanical arm 12 is located on the rotating disk 10, and a gripping head 3 is rotatably connected to the free end of the mechanical arm 12.

[0018] The robotic arm 12 is L-shaped, with its vertical section connected to the rotating disk 10 and its horizontal section connected to the gripping head 3. The robotic arm 12 adjusts its orientation by connecting to the rotating disk 10, thereby adjusting the position of the gripping head 3 and achieving adjustment of the lateral position of the extrusion sleeve 2.

[0019] An operation panel 13 for controlling the extrusion sleeve 2 is installed on the horizontal section of the robotic arm 12. The operation panel 13 contains a recording module for recording extrusion pressure and time parameters. By installing the operation panel 13 on the robotic arm 12 to control the operation of the extrusion sleeve 2 and recording the extrusion pressure and time parameters, the traceability of the lining reinforcement installation is ensured, and the construction quality is standardized.

[0020] A reinforcing rib 14 is provided at the connection between the horizontal and vertical sections of the robotic arm 12. The reinforcing rib 14 ensures the strength of the robotic arm 12 and prevents damage to the robotic arm 12 due to problems in the connection between the horizontal and vertical sections caused by prolonged use of the compression sleeve 2.

[0021] The fixed column 5 is flanged to the connecting plate 6 (not shown in the figure). The flange connection ensures the connection strength between the fixed column 5 and the connecting plate 6.

[0022] The driving component 11 is a pneumatic cylinder or a hydraulic cylinder. Using a pneumatic or hydraulic cylinder as the driving component 11 facilitates the up-and-down rotation of the second rotating rod 9 around the mounting plate 7, thereby adjusting the position of the rotating disk 10.

[0023] The fixed base 1 is provided with at least one hinge seat 15, and the slide rail 4 is provided with a pulley that is hinged to the hinge seat 15. The connection is more convenient by hinged between the hinge seat 15 and the pulley.

[0024] The slide rail 4 is set below the lining trolley, and the clamping device can move along the tunnel direction with the lining trolley. The fixed base 1 slides below the lining trolley, thereby achieving full coverage of the tunnel. The direction and position of the robotic arm 12 are adjusted by the adjustment mechanism, thereby adjusting the position of the extrusion sleeve 2, reducing the use of manpower, improving connection efficiency, improving connection tightness, ensuring the quality of mechanical connection of steel bars, and increasing connection accuracy.

[0025] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A clamping device for a rebar extrusion sleeve, characterized in that: Includes a fixed base (1) and a clamping head (3) for clamping the extrusion sleeve (2). The lower surface of the steel template of the tunnel lining trolley is provided with a slide rail (4) for sliding the fixed base (1). A fixed column (5) is provided below the fixed base (1). An adjustment mechanism for adjusting the position of the clamping head (3) is connected to the fixed column (5). The adjustment mechanism includes a connecting plate (6) located below the fixed column (5) and two mounting plates (7) symmetrically arranged on the connecting plate (6). A first rotating rod (8) and a second rotating rod (9) are hinged between the mounting plates (7) and are spaced apart vertically. One end of the first rotating rod (8) and the second rotating rod (9) is connected to a rotating disk (10), and the other end is hinged between the two mounting plates (7). The end of the second rotating rod (9) passes through the mounting plate (7) and is hinged to a driving member (11) to the rear. The driving member (11) is located on the fixed column (5). A mechanical arm (12) is located on the rotating disk (10), and the clamping head (3) is rotatably connected to the free end of the mechanical arm (12).

2. The clamping device for a rebar extrusion sleeve according to claim 1, characterized in that: The robotic arm (12) is L-shaped, with its vertical section connected to the rotating disk (10) and its horizontal section connected to the gripping head (3).

3. The clamping device for a rebar extrusion sleeve according to claim 2, characterized in that: The horizontal section of the robotic arm (12) is provided with an operation panel (13) for controlling the extrusion sleeve (2), and the operation panel (13) is provided with a recording module for recording extrusion pressure and time parameters.

4. The clamping device for a rebar extrusion sleeve according to claim 2, characterized in that: The connection between the horizontal and vertical sections of the robotic arm (12) is provided with reinforcing ribs (14).

5. The clamping device for a rebar extrusion sleeve according to claim 1, characterized in that: The fixed column (5) is connected to the flange of the connecting plate (6).

6. The clamping device for a rebar extrusion sleeve according to claim 1, characterized in that: The driving component (11) is a pneumatic cylinder or a hydraulic cylinder.

7. The clamping device for a rebar extrusion sleeve according to claim 1, characterized in that: The fixed base (1) is provided with at least one hinge seat (15), and the slide rail (4) is provided with a pulley that is hinged to the hinge seat (15).

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