Mechanical positioning gripper device of annular furnace

Abstract

The utility model provides an annular furnace mechanical positioning gripper device which comprises a lifting plate and a moving block, hydraulic rods are symmetrically connected to the lower surface of the lifting plate, a main lead screw is movably connected into an inner cavity in the middle of the lifting plate through a bearing, one end of the main lead screw is connected with a main motor through a coupler, and the main motor is fixedly connected to the end face of the lifting plate. The movable plate is slidably connected into an inner cavity of the lifting plate through a main screw connected in a threaded mode, the movable block is slidably connected into an inner cavity of the guide plate through an auxiliary screw connected in a threaded mode, the lower surface of the movable block is fixedly connected with a fixing plate, the lower surface of the fixing plate is fixedly connected with a clamping plate through positioning blocks, and the upper end and the lower end of the surface of the clamping plate are symmetrically connected with positioning plates. Buffer grooves are symmetrically formed in the middle of the surface of the clamping plate. Through the cooperation of the movable plate, the movable block, the fixed plate, the clamping plate, the positioning plate and the buffer plate, the gripper device can position and grab steel pipes of different sizes, and the practicability of the gripper device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heating annular furnace auxiliary equipment, in particular to a mechanical positioning gripper device for annular furnace. Background Art

[0002] At present, annular heating furnaces are mostly used in the production of rolled seamless steel pipes at home and abroad. The furnace top heights of such annular heating furnaces are all of the same height, and the disc-shaped furnace bottom of the annular heating furnace can rotate. When the steel pipe is heated, the steel pipe needs to be taken out of the annular furnace. At that time, the commonly used manipulators in society have a small area for clamping steel pipes, which often causes poor surface quality of the clamped parts of the steel pipes or excessive deformation of the steel pipes, affecting the quality of subsequent processing. Moreover, the current manipulators can only grab one end of the steel pipe, which will be unstable, causing the steel pipe to tilt, collide, and deform.

[0003] The cam is connected with the lifting plate by the spring, and the upper and lower parts of the cam are connected with the lifting plate by the spring, and the lower part of the cam is connected with the lifting plate by the spring. The manipulator can adjust the height through the lifting mechanism, clamp the steel pipe through the clamping mechanism, increase the force-bearing area of ​​the steel pipe through double clamping blocks, and the arc clamping block can make the steel pipe evenly stressed to prevent the steel pipe from being deformed due to the small force-bearing area. The position of the steel pipe during clamping can be adjusted through the tightening mechanism, so that the clamping mechanism clamps the middle part of the steel pipe to avoid damage caused by tilting and collision of the steel pipe. However, the clamping block structure of the manipulator is fixed, so that the manipulator cannot be conveniently adjusted according to the size of the steel pipe to be grasped. When the size of the steel pipe is too large, the sharp edges of the clamping block are easy to damage the surface of the steel pipe. When the size of the steel pipe is too small, the clamping block structure of the manipulator cannot be stably grasped, which makes the steel pipe prone to sliding. At the same time, the clamping block and the clamping plate are fixedly connected, so the manipulator cannot be conveniently adjusted according to the axial length of the steel pipe, which affects the grasping effect of the manipulator. Utility Model Content

[0004] In order to overcome the defects of the prior art, a mechanical positioning gripper device for an annular furnace is provided to solve the problems raised in the above background technology.

[0005] To achieve the above object, a mechanical positioning gripper device for a ring furnace is provided, including: a lifting plate and a moving block. Hydraulic rods are symmetrically connected to the lower surface of the lifting plate. The main lead screw is movably connected to the inner cavity in the middle of the lifting plate through a bearing, and one end of the main lead screw is connected to the main motor through a coupling. The main motor is fixedly connected to the end face of the lifting plate. The moving plate is slidably connected to the inner cavity of the lifting plate through the screwed main lead screw. At the same time, a guide plate is fixedly connected to the lower surface of the moving plate. A sub-motor is fixedly connected to the outer end face of the guide plate. The sub-lead screw is movably connected to the inner cavity of the guide plate through a bearing, and the sub-lead screw is connected to the sub-motor through a coupling. The moving block is slidably connected to the inner cavity of the guide plate through the screwed sub-lead screw. A fixing plate is fixedly connected to the lower surface of the moving block. A clamping plate is fixedly connected to the lower surface of the fixing plate through a positioning block. Positioning plates are symmetrically connected to the upper and lower ends of the surface of the clamping plate. Buffer grooves are symmetrically opened in the middle of the surface of the clamping plate. At the same time, buffer rods are slidably connected to the buffer grooves through springs. One end of the buffer rod is fixedly connected to a buffer plate.

[0006] Preferably, the lifting plate has a rectangular frame structure, and the combination of the lifting plate and the main lead screw forms a structure like the Chinese character 'Ri'. At the same time, the telescopic rods of a group of hydraulic cylinders are respectively fixedly connected to the four corners of the lower surface of the lifting plate.

[0007] Preferably, there are two groups of moving plates. Both groups of moving plates have an 'I' - shaped structure, and the sizes of the moving plates and the inner cavity of the lifting plate are adapted to each other. The guide plate fixedly connected to the lower surface of the lifting plate has a long - strip structure, and the cross - section of the inner cavity of the guide plate is a convex - shaped structure.

[0008] Preferably, two groups of moving blocks are symmetrically screwed to the inner cavity of the guide plate through the sub - lead screw. Both groups of moving blocks have a convex - shaped structure, and the fixing plate fixedly connected to the lower surface of the moving block has a rectangular structure. At the same time, two groups of positioning grooves are symmetrically opened at the lower ends on both sides of the fixing plate. Both groups of positioning grooves have a rectangular structure.

[0009] Preferably, the clamping plate has a square structure. Positioning blocks are correspondingly connected to the positions of the clamping plate's upper surface relative to the positioning grooves, and the positioning blocks are fixedly connected to the positioning grooves through bolts. Multiple groups of buffer grooves are opened on the surface of the clamping plate in parallel and at equal intervals. The axial cross - section of the buffer groove is a structure like the Chinese character 'Zhong'.

[0010] Preferably, the two groups of positioning plates fixedly connected to the surface of the clamping plate both have a right - angled triangular prism structure, and the cross - section formed by the combination of the positioning plate and the clamping plate is a '匚' - shaped structure. At the same time, the edge of the positioning plate away from the clamping plate is in an arc - shaped structure.

[0011] Preferably, the buffer rod has a cylindrical structure, the part of the buffer rod located in the buffer groove is fixedly connected to a limiting ring, the limiting ring has a circular structure, and one end of the buffer rod located in the buffer groove is sleeved with a spring, and the buffer plate to which the buffer rod is fixedly connected has a rectangular structure, and an auxiliary groove is provided on the surface of the buffer plate away from the buffer rod, and the auxiliary groove has an arc-shaped structure.

[0012] Compared with the prior art, the beneficial effects of the utility model are: through the cooperation of the guide plate, the auxiliary screw, the auxiliary motor, the moving block, the fixed plate, the positioning plate, the buffer rod and the buffer plate, the gripping device can conveniently position and grip the steel pipe to be gripped, and can stably grip steel pipes of different sizes, and can also reduce the probability of damage to the surface of the steel pipe due to gripping, thereby improving the practicality of the gripping device. At the same time, through the cooperation of the lifting plate, the main screw, the main motor and the moving plate, the gripping position of the steel pipe of the gripping device can be conveniently adjusted according to actual needs, thereby enhancing the gripping effect of the gripping device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view schematic diagram of an embodiment of the utility model.

[0014] Figure 2 It is a side view schematic diagram of an embodiment of the utility model.

[0015] Figure 3 It is a partial top view schematic diagram of an embodiment of the utility model.

[0016] Figure 4 It is a partial structural schematic diagram of the clamping plate of an embodiment of the utility model.

[0017] In the figure: 1. lifting plate; 2. main screw; 3. hydraulic rod; 4. moving plate; 5. guide plate; 6. auxiliary screw; 7. moving block; 8. fixed plate; 9. positioning block; 10. positioning plate; 11. buffer plate; 12. buffer rod; 13. clamping plate; 14. main motor; 15. buffer slot; 16. auxiliary motor. DETAILED DESCRIPTION

[0018] Reference Figures 1 to 4As shown, the utility model provides a mechanical positioning gripper device for an annular furnace, comprising: a lifting plate 1 and a moving block 7, wherein the lower surface of the lifting plate 1 is symmetrically connected to a hydraulic rod 3, and the inner cavity in the middle of the lifting plate 1 is movably connected to a main screw rod 2 through a bearing, and one end of the main screw rod 2 is connected to a main motor 14 through a coupling, and the main motor 14 is fixedly connected to the end surface of the lifting plate 1, and the moving plate 4 is slidably connected to the inner cavity of the lifting plate 1 through the main screw rod 2 that is screwed, and at the same time, the lower surface of the moving plate 4 is fixedly connected to a guide plate 5, and the outer end surface of the guide plate 5 is fixedly connected to an auxiliary motor 16, and the guide plate 5 is movably connected to the auxiliary screw rod 6 through the bearing, and the auxiliary screw rod 6 is connected to the auxiliary motor 16 through the coupling. The moving block 7 is slidably connected in the inner cavity of the guide plate 5 through the screwed auxiliary screw rod 6, and the lower surface of the moving block 7 is fixedly connected to the fixed plate 8, and the lower surface of the fixed plate 8 is fixedly connected to the clamping plate 13 through the positioning block 9, and the upper and lower ends of the surface of the clamping plate 13 are symmetrically connected to the positioning plate 10, and the middle part of the surface of the clamping plate 13 is symmetrically provided with a buffer groove 15, and the buffer rod 12 is slidably connected in the buffer groove 15 through a spring, and one end of the buffer rod 12 is fixedly connected to the buffer plate 11.

[0019] In this embodiment, when the steel pipe inside the annular furnace needs to be grasped, the switch of the hydraulic rod 3 is started, and the telescopic rod of the hydraulic rod 3 drives the lifting plate 1 to move in the vertical plane, and the lifting plate 1 drives the fixed plate 8 and the clamping plate 13 to move synchronously through the movable plate 4, so that the clamping plate 13 can move to both sides of the steel pipe to be grasped, and the switch of the main motor 14 is started, and the main motor 14 drives the main screw 2 to rotate through the coupling, and the main screw 2 drives the two groups of movable plates 4 to move relative or opposite to each other through the screwed movable plate 4, and then the position of the clamping plate 13 is adjusted to ensure the positioning and grasping effect of the clamping plate 13 on the steel pipe, and then the switch of the auxiliary motor 16 is started, and the auxiliary motor 16 is driven by the movable plate 4. The coupling drives the auxiliary screw 6 to rotate, and the auxiliary screw 6 drives the corresponding two groups of fixed plates 8 to move relative to each other through the screwed moving block 7, so that the fixed plate 8 can push the clamping plate 13 to grab the steel pipe, wherein the setting of the positioning plate 10 can limit the movement range of the steel pipe in the vertical plane to avoid the problem of accidental falling of the steel pipe, and the clamping plate 13 grabs the steel pipe through the buffer plate 11. Through the cooperation of the buffer rod 12 and the spring, the probability of the steel pipe surface being over-clamped by the clamping plate 13 can be effectively reduced, thereby reducing the probability of damage to the steel pipe surface, and can also reduce the probability of the steel pipe sliding in the horizontal plane, thereby enhancing the effect of positioning and grabbing the steel pipe in the annular furnace.

[0020] As a preferred embodiment, the lifting plate 1 is in a U-shaped structure, and the lifting plate 1 and the main screw 2 are combined to form a R-shaped structure, and the four corners of the lower surface of the lifting plate 1 are respectively fixedly connected to a group of telescopic rods of a hydraulic cylinder.

[0021] In this embodiment, if Figure 1 and Figure 3The arrangement of the lifting plate 1 and the hydraulic rod 3 enables the gripping device to be adjusted in height according to actual needs, thereby ensuring that the gripping device can smoothly grasp the corresponding objects.

[0022] As a preferred embodiment, there are two groups of movable plates 4, both of which are in an I-shaped structure, and the sizes of the inner cavities of the movable plates 4 and the lifting plate 1 are matched, and the guide plate 5 fixedly connected to the lower surface of the lifting plate 1 is in a long strip structure, and the cross-section of the inner cavity of the guide plate 5 is in a convex structure.

[0023] In this embodiment, if Figure 1 , Figure 2 and Figure 3 The sizes of the inner cavities of the moving plate 4 and the lifting plate 1 are matched, which can help enhance the stability of the moving plate 4 during movement, and can also help reduce the probability of bending and deformation of the main screw 2, thereby reducing the probability of transmission failure of the gripper device.

[0024] As a preferred embodiment, the inner cavity of the guide plate 5 is symmetrically screwed with two groups of moving blocks 7 through a secondary screw rod 6. The two groups of moving blocks 7 are both in a convex shape, and the fixed plate 8 fixedly connected to the lower surface of the moving block 7 is in a rectangular structure. At the same time, two groups of positioning grooves are symmetrically opened at the lower ends of both sides of the fixed plate 8, and the two groups of positioning grooves are in a rectangular structure.

[0025] In this embodiment, if Figure 1 , Figure 2 and Figure 3 The sizes of the inner cavities of the moving block 7 and the guide plate 5 are matched, which can reduce the probability of shaking of the moving block 7 during movement and enhance the stability of the fixing plate 8 and the clamping plate 13 during movement.

[0026] As a preferred embodiment, the clamping plate 13 is of a square structure, and the position of the upper surface of the clamping plate 13 relative to the positioning groove corresponds to the connected positioning block 9, and the positioning block 9 is fixedly connected in the positioning groove by bolts, and a plurality of groups of buffer grooves 15 are arranged on the surface of the clamping plate 13 in parallel and at equal intervals, and the axial section of the buffer groove 15 is of a Chinese-character-shaped structure.

[0027] In this embodiment, if Figure 1 , Figure 2 and Figure 3 The clamping plate 13 is fixedly connected to the positioning block 9, and the positioning block 9 is fixedly connected in the positioning groove by bolts, so that the clamping plate 13 in the gripping device can be conveniently loaded and unloaded, thereby improving the flexibility of the gripping device when in use.

[0028] As a preferred embodiment, the two positioning plates 10 fixedly connected to the surface of the clamping plate 13 are both in the structure of a right-angled triangular prism, and the cross-section formed by the combination of the positioning plate 10 and the clamping plate 13 is in a C-shaped structure. At the same time, the edge of the positioning plate 10 away from the clamping plate 13 is in an arc-shaped structure.

[0029] In this embodiment, as Figure 3 and Figure 4 , the arc-shaped edge of the positioning plate 10 can reduce the probability of damage to the surface of the steel pipe when the positioning plate 10 grabs the steel pipe. Moreover, the inclined surfaces of the two positioning plates 10 are arranged oppositely to ensure that the gripper device can stably grab steel pipes of different sizes and avoid the problem of accidental dropping of the steel pipe.

[0030] As a preferred embodiment, the buffer rod 12 is in a cylindrical structure. The part of the buffer rod 12 located in the buffer groove 15 is fixedly connected with a limiting ring. The limiting ring is in a circular ring structure. One end of the buffer rod 12 located in the buffer groove 15 is sleeved with a spring. At the same time, the buffer plate 11 fixedly connected to the buffer rod 12 is in a rectangular structure, and an auxiliary groove is formed on the surface of the buffer plate 11 away from the buffer rod 12. The auxiliary groove is in an arc-shaped structure.

[0031] In this embodiment, as Figure 2 , Figure 3 and Figure 4 , the dimensions of the relative positions of the buffer rod 12 and the limiting ring and the buffer groove 15 are adapted to each other, which can effectively enhance the stability of the buffer rod 12 during movement. Moreover, the spring sleeved on the buffer rod 12 enables the buffer plate 11 to have an automatic reset structure. Therefore, it can assist in enhancing the fixing effect of the buffer plate 11 on the positioning and clamping of the steel pipe and reduce the probability of accidental sliding of the steel pipe.

[0032] Through the cooperation of the moving plate 4, the moving block 7, the fixing plate 8, the clamping plate 13, the positioning plate 10 and the buffer plate 11 of the mechanical positioning gripper device of the annular furnace of the present invention, the gripper device can position and grab steel pipes of different sizes, improving the practicability of the gripper device. At the same time, through the cooperation of the clamping plate 13, the buffer rod 12, the buffer plate 11 and the positioning plate 10, the stability of the gripper device when grabbing the workpiece can be effectively enhanced, and the probability of damage to the surface of the workpiece can also be assisted in reducing, improving the safety during use and the quality of the workpiece.

Claims

1. A mechanical positioning gripper device for an annular furnace, comprising: Lifting plate (1) and moving block (7), characterized in that: the lower surface of the lifting plate (1) is symmetrically connected with hydraulic rods (3), and the main lead screw (2) is movably connected in the inner cavity in the middle of the lifting plate (1) through a bearing, and one end of the main lead screw (2) is connected with the main motor (14) through a coupling, the main motor (14) is fixedly connected to the end face of the lifting plate (1), and the moving plate (4) is slidably connected in the inner cavity of the lifting plate (1) through the screwed main lead screw (2). At the same time, a guide plate (5) is fixedly connected to the lower surface of the moving plate (4), a sub-motor (16) is fixedly connected to the outer end face of the guide plate (5), and the sub-lead screw (6) is movably connected in the inner cavity of the guide plate (5) through a bearing, the sub-lead screw (6) is connected with the sub-motor (16) through a coupling. The moving block (7) is slidably connected in the inner cavity of the guide plate (5) through the screwed sub-lead screw (6), and a fixing plate (8) is fixedly connected to the lower surface of the moving block (7), and a clamping plate (13) is fixedly connected to the lower surface of the fixing plate (8) through a positioning block (9). The upper and lower ends of the surface of the clamping plate (13) are symmetrically connected with positioning plates (10), and buffer grooves (15) are symmetrically opened in the middle of the surface of the clamping plate (13). At the same time, the buffer rod (12) is slidably connected in the buffer groove (15) through a spring, and one end of the buffer rod (12) is fixedly connected with a buffer plate (11).

2. The mechanical positioning gripper device for an annular furnace according to claim 1, characterized in that: The lifting plate (1) has a square frame structure, and the combination of the lifting plate (1) and the main lead screw (2) forms a structure like the Chinese character 'Ri' (日). At the same time, the telescopic rods of a group of hydraulic cylinders are respectively fixedly connected to the four corners of the lower surface of the lifting plate (1).

3. The mechanical positioning gripper device for an annular furnace according to claim 1, characterized in that: There are two groups of moving plates (4), and both groups of moving plates (4) have an 'I' - shaped structure, and the size of the moving plate (4) is adapted to the inner cavity of the lifting plate (1). The guide plate (5) fixedly connected to the lower surface of the lifting plate (1) has a long - strip structure, and the cross - section of the inner cavity of the guide plate (5) has a convex - shaped structure.

4. The mechanical positioning gripper device for an annular furnace according to claim 1, characterized in that: Two groups of moving blocks (7) are symmetrically screwed in the inner cavity of the guide plate (5) through the sub - lead screw (6). Both groups of moving blocks (7) have a convex - shaped structure, and the fixing plate (8) fixedly connected to the lower surface of the moving block (7) has a rectangular structure. At the same time, two groups of positioning grooves are symmetrically opened at the lower ends on both sides of the fixing plate (8), and both groups of positioning grooves have a rectangular structure.

5. The mechanical positioning gripper device for an annular furnace according to claim 1, characterized in that: The clamping plate (13) has a square structure. Positioning blocks (9) are correspondingly connected to the positions of the clamping plate (13) corresponding to the positioning grooves on the upper surface, and the positioning blocks (9) are fixedly connected in the positioning grooves through bolts. Multiple groups of buffer grooves (15) are opened on the surface of the clamping plate (13) in parallel and at equal intervals, and the axial cross - section of the buffer groove (15) has a structure like the Chinese character 'Zhong' (中).

6. The mechanical positioning gripper device for an annular furnace according to claim 1, characterized in that: Both groups of positioning plates (10) fixedly connected to the surface of the clamping plate (13) have a right - angled triangular prism structure, and the cross - section formed by the combination of the positioning plate (10) and the clamping plate (13) has a '匚' - shaped structure. At the same time, the edge of the positioning plate (10) away from the clamping plate (13) has an arc - shaped structure.

7. The mechanical positioning gripper device for an annular furnace according to claim 1, characterized in that: The buffer rod (12) has a cylindrical structure, the part of the buffer rod (12) located in the buffer groove (15) is fixedly connected to a limiting ring, the limiting ring has a circular ring structure, and one end of the buffer rod (12) located in the buffer groove (15) is sleeved with a spring, and the buffer plate (11) to which the buffer rod (12) is fixedly connected has a rectangular structure, and an auxiliary groove is provided on the surface of the buffer plate (11) away from the buffer rod (12), and the auxiliary groove has an arc-shaped structure.

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