Clamping device for nodular cast iron casting

Abstract

The utility model relates to a clamping device for a nodular cast iron casting. The clamping device comprises two sets of first C-shaped frames arranged oppositely, and the opposite ends of the two sets of first C-shaped frames are each provided with a plurality of first L-shaped limiting parts matched with a flange type casting; the two sets of second C-shaped frames are oppositely arranged, the two sets of second C-shaped frames are located between the two first C-shaped frames, the second C-shaped frames and the first C-shaped frames are coaxially arranged, and the sides, opposite to each other, of the two sets of second C-shaped frames are each provided with a plurality of second L-shaped limiting parts matched with the flange type casting; the first adjusting part is used for driving the two groups of first C-shaped frames to move towards each other or away from each other, and the second adjusting part is used for driving the two groups of second C-shaped frames to move towards each other or away from each other. According to the utility model, the punching quality of the flange casting can be effectively prevented from being influenced by the shaking of the flange casting due to stress during punching.

Description

Technical Field

[0001] The utility model relates to the technical field of casting processing equipment, in particular to a clamping device for ductile iron castings. Background Art

[0002] Ductile iron castings are various parts and components made from ductile iron. Ductile iron is a high-strength cast iron material. This special graphite form greatly improves the mechanical properties of cast iron, making it superior to ordinary gray cast iron in strength, toughness and plasticity.

[0003] There are many kinds of ductile iron castings, one of which is flange castings. During processing, flange castings are generally punched at both ends of the flange casting using a punching device. Before punching, the flange casting is generally clamped and fixed using a clamping device commonly used in existing technologies. The clamping device is prone to instability of the flange casting during punching, causing the flange casting to shake under force during punching, thereby affecting the punching quality. Utility Model Content

[0004] The utility model aims to solve the problems existing in the prior art and provides a clamping device for ductile iron castings. The specific technical solution is as follows:

[0005] Clamping device for ductile iron castings, comprising:

[0006] Two sets of first C-shaped frames are arranged facing each other, and the opposite ends of the two sets of first C-shaped frames are provided with a plurality of first L-shaped limit portions adapted to the flange casting;

[0007] Two sets of second C-shaped frames arranged opposite to each other, the two sets of second C-shaped frames are located between the two first C-shaped frames, and the second C-shaped frames are arranged coaxially with the first C-shaped frames, and the two sets of second C-shaped frames are provided with a plurality of second L-shaped limit portions adapted to the flange casting on opposite sides thereof;

[0008] The first adjusting part is used to drive the two groups of first C-shaped frames to move toward or away from each other, and the second adjusting part is used to drive the two groups of second C-shaped frames to move toward or away from each other.

[0009] As an improvement to the above technical solution: it also includes a base arranged at the bottom of the second C-shaped frame, a support portion is provided between the base and the second C-shaped frame, the support portion includes a hydraulic cylinder and an arc-shaped support block adapted to the flange-type casting, the hydraulic cylinder is installed on the top of the base, and the arc-shaped support block is fixedly connected to the top output shaft of the hydraulic cylinder.

[0010] As an improvement of the above technical solution: the first adjusting part includes a first fixed shell, a first threaded rod, a first drive motor and two groups of first nut blocks, the first drive motor is fixedly installed on one side of the inner wall of the first fixed shell, one end of the first threaded rod is connected to the output shaft of the first drive motor, and the other end of the first threaded rod is rotatably connected to the other side of the inner wall of the first fixed shell, the two groups of first nut blocks are symmetrically threaded on the first threaded rod, and the opposite sides of the two groups of first nut blocks are fixedly connected with a first L-shaped rod, and one end of the first L-shaped rod is movably passed through the outside of the first fixed shell and connected to one of the first C-shaped frames.

[0011] As an improvement of the above technical solution: the first L-shaped limit part includes a first horizontal limit block and a first vertical limit block, the first vertical limit block is rotatably connected to one end of the first horizontal limit block through a first damping shaft, and the other end of the first horizontal limit block is fixedly connected to the first C-shaped frame through a first connecting column.

[0012] As an improvement of the above technical solution: the second adjusting part includes a second fixed shell, a second threaded rod, a second drive motor and two groups of second nut blocks, the second drive motor is fixedly installed on one side of the inner wall of the second fixed shell, one end of the second threaded rod is connected to the output shaft of the second drive motor, and the other end of the second threaded rod is rotatably connected to the other side of the inner wall of the second fixed shell, the two groups of second nut blocks are symmetrically threaded on the second threaded rod, and the opposite sides of the two groups of second nut blocks are fixedly connected with a second L-shaped rod, and one end of the second L-shaped rod is movably passed through the outside of the second fixed shell and connected to one of the second C-shaped frames.

[0013] As an improvement of the above technical solution: the second L-shaped limit part includes a second horizontal limit block and a second vertical limit block, the second vertical limit block is rotatably connected to one end of the second horizontal limit block through a second damping shaft, and the other end of the second horizontal limit block is fixedly connected to the second C-shaped frame through a second connecting column.

[0014] Beneficial effects of the utility model:

[0015] Specifically, when the flange-type casting is clamped before punching, the first drive motor and the second drive motor are started, so that the first L-shaped rod drives the multiple first vertical limit blocks connected to one side of the two first C-shaped frames to move away from each other, and the second L-shaped rod drives the multiple second vertical limit blocks connected to one side of the two second C-shaped frames to move toward each other, so that the cooperation of the multiple first horizontal limit blocks and the second horizontal limit blocks can stably clamp and fix the two sides of the two end portions of the flange-type casting, thereby effectively preventing the flange-type casting from being shaken by force during punching and affecting its punching quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The three-dimensional structure of the utility model is shown as follows Figure 1 ;

[0017] Figure 2 The three-dimensional structure of the utility model is shown as follows Figure 2 ;

[0018] Figure 3 The three-dimensional structure of the utility model is shown as follows Figure 3 ;

[0019] Figure 4 This is a schematic structural diagram of the first fixed shell in the present utility model;

[0020] Figure 5 This is a schematic structural diagram of the second fixed shell in the present utility model;

[0021] Figure 6 This is a schematic structural diagram of the first L-shaped limiting portion in the present invention;

[0022] Figure 7 It is a structural schematic diagram of the second L-shaped limiting portion in the present utility model.

[0023] Figure numerals: 100, flange-type casting; 1, base; 2, first fixed shell; 21, first L-shaped rod; 22, first nut block; 23, first drive motor; 24, first threaded rod; 3, first C-shaped frame; 4, first connecting column; 41, first horizontal limit block; 42, first vertical limit block; 43, first damping shaft; 5, second fixed shell; 51, second L-shaped rod; 52, second nut block; 53, second drive motor; 54, second threaded rod; 6, second C-shaped frame; 7, second connecting column; 71, second horizontal limit block; 72, second vertical limit block; 73, second damping shaft; 8, hydraulic cylinder; 81, arc-shaped support block. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] Example

[0026] Please refer to Figure 1-Figure 7, a clamping device for ductile iron castings, including two groups of first C-shaped frames 3 arranged opposite to each other, and the opposite ends of the two groups of first C-shaped frames 3 are provided with multiple first L-shaped limit parts adapted to the flange-type casting 100; two groups of second C-shaped frames 6 arranged opposite to each other, the two groups of second C-shaped frames 6 are located between the two first C-shaped frames 3, and the second C-shaped frames 6 are arranged coaxially with the first C-shaped frames 3, and the opposite sides of the two groups of second C-shaped frames 6 are provided with multiple second L-shaped limit parts adapted to the flange-type casting 100; a first adjusting part and a second adjusting part, the first adjusting part is used to drive the two groups of first C-shaped frames 3 to move toward or away from each other, and the second adjusting part is used to drive the two groups of second C-shaped frames 6 to move toward or away from each other.

[0027] In an optional embodiment: it also includes a base 1 arranged at the bottom of the second C-shaped frame 6, a support portion is provided between the base 1 and the second C-shaped frame 6, the support portion includes a hydraulic cylinder 8 and an arc-shaped support block 81 adapted to the flange-type casting 100, the hydraulic cylinder 8 is installed on the top of the base 1, and the arc-shaped support block 81 is fixedly connected to the top output shaft of the hydraulic cylinder 8. Specifically, the arc-shaped support block 81 is located between the two second C-shaped frames 6, and the bottom of the flange-type casting 100 can be effectively supported by the arc-shaped support block 81.

[0028] In an optional embodiment: the first adjusting part includes a first fixed shell 2, a first threaded rod 24, a first drive motor 23 and two groups of first nut blocks 22, the first drive motor 23 is fixedly installed on one side of the inner wall of the first fixed shell 2, one end of the first threaded rod 24 is connected to the output shaft of the first drive motor 23, and the other end of the first threaded rod 24 is rotatably connected to the other side of the inner wall of the first fixed shell 2, the two groups of first nut blocks 22 are symmetrically threadedly connected to the first threaded rod 24, and the opposite sides of the two groups of first nut blocks 22 are fixedly connected with the first L-shaped rod 21, and one end of the first L-shaped rod 21 is movable through the outside of the first fixed shell 2 and connected to one of the first C-shaped frames 3.

[0029] Specifically, a first limiting rod parallel to the first threaded rod 24 is provided inside the first fixed shell 2, and one end of the two first nut blocks 22 is slidably sleeved on the surface of the first limiting rod, so that the first nut block 22 can be stably limited and moved. Two groups of threads with opposite directions are provided on the first threaded rod 24, and are adapted to the inner side wall of the first nut block 22, so that when the first threaded rod 24 is rotated, the two first nut blocks 22 can be driven to move toward or away from each other.

[0030] In an optional embodiment: the first L-shaped limit portion includes a first horizontal limit block 41 and a first vertical limit block 42, the first vertical limit block 42 is rotatably connected to one end of the first horizontal limit block 41 through a first damping shaft 43, and the other end of the first horizontal limit block 41 is fixedly connected to the first C-shaped frame 3 through a first connecting column 4.

[0031] In an optional embodiment: the second adjusting part includes a second fixed shell 5, a second threaded rod 54, a second drive motor 53 and two groups of second nut blocks 52, the second drive motor 53 is fixedly installed on one side of the inner wall of the second fixed shell 5, one end of the second threaded rod 54 is connected to the output shaft of the second drive motor 53, and the other end of the second threaded rod 54 is rotatably connected to the other side of the inner wall of the second fixed shell 5, the two groups of second nut blocks 52 are symmetrically threadedly connected to the second threaded rod 54, and the opposite sides of the two groups of second nut blocks 52 are fixedly connected with a second L-shaped rod 51, and one end of the second L-shaped rod 51 is movable through the outside of the second fixed shell 5 and connected to one of the second C-shaped frames 6.

[0032] Specifically, a second limiting rod parallel to the second threaded rod 54 is provided inside the second fixed shell 5, and one end of the two second nut blocks 52 is slidably sleeved on the surface of the second limiting rod, so that the second nut block 52 can be stably limited and moved. Two groups of threads with opposite directions are provided on the second threaded rod 54, and are adapted to the inner side wall of the second nut block 52, so that when the second threaded rod 54 is rotated, the two second nut blocks 52 can be driven to move toward or away from each other.

[0033] In an optional embodiment, the second L-shaped limit portion includes a second horizontal limit block 71 and a second vertical limit block 72. The second vertical limit block 72 is rotatably connected to one end of the second horizontal limit block 71 through a second damping shaft 73. The other end of the second horizontal limit block 71 is fixedly connected to the second C-shaped frame 6 through a second connecting column 7. Specifically, Figure 1 As shown, the direction of rotation of the first transverse limiting block 41 and the second transverse limiting block 71 is the M direction.

[0034] Specifically, when the flange type casting 100 is clamped before punching, first manually rotate the first transverse limit block 41 and the second transverse limit block 71 to allow the first transverse limit block 41 and the second transverse limit block 71 to rotate to the outer radial direction of the first C-shaped frame 3 and the second C-shaped frame 6 to avoid being blocked by the first transverse limit block 41 and the second transverse limit block 71 when the flange type casting 100 is inserted into the inner side of the first C-shaped frame 3 and the second C-shaped frame 6, and the hydraulic cylinder 8 controls the arc support block 81 to move to a suitable height to support the bottom side of the flange type casting 100, and then insert one end of the flange type casting 100 into the inner side of the first C-shaped frame 3 and the second C-shaped frame 6 in the axial direction of the first C-shaped frame 3 and the second C-shaped frame 6, and then manually rotate the first transverse limit block 41 and the second transverse limit block 71 to allow the first transverse limit block 41 and the second transverse limit block 71 to rotate in the inner radial direction of the first C-shaped frame 3 and the second C-shaped frame 6, as shown in FIG. Figure 1 and Figure 2 As shown, the first drive motor 23 and the second drive motor 53 are then started, so that the first L-shaped rod 21 drives the multiple first vertical limit blocks 42 connected to one side of the two first C-shaped frames 3 to move away from each other, and the second L-shaped rod 51 drives the multiple second vertical limit blocks 72 connected to one side of the two second C-shaped frames 6 to move toward each other, so that the cooperation of the multiple first horizontal limit blocks 41 and the second horizontal limit blocks 71 can stably clamp and fix the two sides of the two end portions of the flange-type casting 100, thereby effectively preventing the flange-type casting 100 from being shaken by force during punching and affecting its punching quality.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A clamping device for ductile iron castings, characterized in that: include: Two groups of first C-shaped frames (3) are arranged facing each other, and opposite ends of the two groups of first C-shaped frames (3) are each provided with a plurality of first L-shaped limiting portions adapted to the flange-shaped casting (100); Two groups of second C-shaped frames (6) are arranged facing each other, the two groups of second C-shaped frames (6) are located between the two first C-shaped frames (3), and the second C-shaped frames (6) are arranged coaxially with the first C-shaped frames (3), and the two groups of second C-shaped frames (6) are provided with a plurality of second L-shaped limiting portions adapted to the flange casting (100) on opposite sides thereof; A first adjusting portion and a second adjusting portion, wherein the first adjusting portion is used to drive the two groups of first C-shaped frames (3) to move toward or away from each other, and the second adjusting portion is used to drive the two groups of second C-shaped frames (6) to move toward or away from each other.

2. The clamping device for ductile iron castings according to claim 1, characterized in that: The invention also includes a base (1) arranged at the bottom of the second C-shaped frame (6), a support portion is provided between the base (1) and the second C-shaped frame (6), the support portion includes a hydraulic cylinder (8) and an arc-shaped support block (81) adapted to the flange-shaped casting (100), the hydraulic cylinder (8) is installed on the top of the base (1), and the arc-shaped support block (81) is fixedly connected to the top output shaft of the hydraulic cylinder (8).

3. The clamping device for ductile iron castings according to claim 2, characterized in that: The first adjusting portion comprises a first fixed shell (2), a first threaded rod (24), a first drive motor (23) and two groups of first nut blocks (22); the first drive motor (23) is fixedly mounted on one side of the inner wall of the first fixed shell (2); one end of the first threaded rod (24) is connected to the output shaft of the first drive motor (23); the other end of the first threaded rod (24) is rotatably connected to the other side of the inner wall of the first fixed shell (2); the two groups of first nut blocks (22) are symmetrically threadedly connected to the first threaded rod (24); the two groups of first nut blocks (22) are fixedly connected to the first L-shaped rod (21) on opposite sides; one end of the first L-shaped rod (21) is movably passed through the outer side of the first fixed shell (2) and is connected to one of the first C-shaped frames (3).

4. The clamping device for ductile iron castings according to claim 3, characterized in that: The first L-shaped limiting portion comprises a first transverse limiting block (41) and a first vertical limiting block (42); the first vertical limiting block (42) is rotatably connected to one end of the first transverse limiting block (41) via a first damping shaft (43); and the other end of the first transverse limiting block (41) is fixedly connected to the first C-shaped frame (3) via a first connecting column (4).

5. The clamping device for ductile iron castings according to claim 4, characterized in that: The second adjustment portion comprises a second fixed shell (5), a second threaded rod (54), a second drive motor (53) and two groups of second nut blocks (52); the second drive motor (53) is fixedly mounted on one side of the inner wall of the second fixed shell (5); one end of the second threaded rod (54) is connected to the output shaft of the second drive motor (53); the other end of the second threaded rod (54) is rotatably connected to the other side of the inner wall of the second fixed shell (5); the two groups of second nut blocks (52) are symmetrically threadedly connected to the second threaded rod (54); the two groups of second nut blocks (52) are fixedly connected to the second L-shaped rod (51) on opposite sides; one end of the second L-shaped rod (51) is movably passed through the outer side of the second fixed shell (5) and is connected to one of the second C-shaped frames (6).

6. The clamping device for ductile iron castings according to claim 5, characterized in that: The second L-shaped limiting portion comprises a second transverse limiting block (71) and a second vertical limiting block (72); the second vertical limiting block (72) is rotatably connected to one end of the second transverse limiting block (71) via a second damping shaft (73); and the other end of the second transverse limiting block (71) is fixedly connected to the second C-shaped frame (6) via a second connecting column (7).

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