Workpiece fixing device for casting surface spraying

Abstract

The utility model discloses a workpiece fixing device for casting surface spraying, which comprises a circular ring frame and a supporting seat, annular racks are fixedly connected on the circumferential surface of the circular ring frame, at least two supporting gears are arranged on the supporting seat, the supporting gears are rotatably mounted on the supporting seat, the annular racks are meshed with each other, the annular racks support the circular ring frame, and the circular ring frame is fixed on the supporting seat. Wherein one supporting gear is driven by a motor to rotate, a plurality of movable clamping rods are installed on the circular ring frame, the movable clamping rods point to the center of the circular ring frame respectively, and the movable clamping rods are driven by an air cylinder fixed to the circular ring frame to move back and forth in the radial direction of the circular ring frame. According to the workpiece fixing device for casting surface spraying, the casting can be effectively fixed, the angle of the casting can be adjusted within a certain range, and the workpiece fixing device can be conveniently matched with a worker or a robot to conduct spraying operation on the surface of the casting. Clamping points on the surface of the casting cannot form four spraying corners, the casting is stable and safe in the angle adjusting process, and the work efficiency of casting surface spraying is improved.

Description

Technical Field

[0001] This utility model belongs to the field of spraying fixture technology, specifically relating to a workpiece fixing device for spraying casting surfaces. Background Technology

[0002] When spraying coatings on castings, the large size and weight of the castings make angle adjustment difficult during the process. This results in low spraying efficiency, easily overlooked corners, and hinders automated spraying operations with robotic spraying. Spraying large, complex castings is even more challenging, as the lack of effective fixtures makes it difficult to maintain a specific angle. Therefore, a fixture designed to effectively secure and easily adjust the angle of large, complex castings is needed. Utility Model Content

[0003] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a workpiece fixing device for surface spraying of castings, including a ring frame and a support base. A ring rack is fixedly connected to the circumferential surface of the ring frame. At least two support gears are provided on the support base. The support gears are rotatably mounted on the support base. The ring rack meshes with the ring rack and supports the ring frame. One of the support gears is driven to rotate by a motor. Several movable clamping rods are installed on the ring frame. The movable clamping rods point to the center of the ring frame respectively. The movable clamping rods are driven by a cylinder fixed to the ring frame to move back and forth along the radial direction of the ring frame.

[0004] As a preferred embodiment of the above technical solution, the movable clamping rods are divided into four teams, each team consisting of two parallel movable clamping rods, and the four teams of movable clamping rods are evenly distributed around the circular frame.

[0005] As a preferred embodiment of the above technical solution, two limit rods are provided on the circumferential surface of the ring frame, and two limit switches are installed on the support base for sensing the limit rods, and the limit switches are connected to the motor.

[0006] As a preferred embodiment of the above technical solution, the movable clamping rod is connected to a flexible pad via a universal joint.

[0007] As a preferred embodiment of the above technical solution, a feeding frame is provided on one side of the support base. The feeding frame is inclined and several sliding rollers are rotatably installed on the feeding frame in sequence.

[0008] As a preferred embodiment of the above technical solution, a material unloading frame is provided on the other side of the support base, and the structure of the material unloading frame is the same as that of the material loading frame.

[0009] The beneficial effects of this utility model are as follows: The workpiece fixing device for spraying castings can effectively fix the castings and adjust the angle of the castings within a certain range, making it convenient for workers or robots to perform spraying operations on the casting surface. The clamping points on the casting surface will not form four corners for spraying, and the casting is stable and safe during the angle adjustment process, thus improving the work efficiency of casting surface spraying. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model. Detailed Implementation

[0012] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0013] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0014] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0015] like Figure 1-2As shown, a workpiece fixing device for surface spraying of castings includes a circular frame 1 and a support base 2. A ring rack 3 is fixedly connected to the circumference of the circular frame 1. At least two support gears 4 are provided on the support base 2, and the support gears 4 are rotatably mounted on the support base 2. The ring rack 3 meshes with the ring rack 3, supporting the circular frame 1. One of the support gears 4 is driven to rotate by a motor 15. Several movable clamping rods 5 are installed on the circular frame 1, each pointing towards the center of the circular frame 1. The movable clamping rods 5 are driven by a cylinder 6 fixed to the circular frame 1 to move back and forth radially along the circular frame 1. When a casting is placed into the circular frame 1, the cylinder drives the movable clamping rods 5 to extend, thereby clamping the casting from different angles. The clamped casting can rotate with the circular frame 1 at a certain angle, facilitating spraying with a robot or worker operating the spray gun. The rotation angle of the circular frame 1 is controlled by a motor.

[0016] Furthermore, the movable clamping rods 5 are divided into four pairs, each pair consisting of two parallel movable clamping rods 5, with the four pairs evenly distributed around the circular frame 1. During the spraying process, the two movable clamping rods 5 in each pair extend and clamp the casting alternately, thus preventing the formation of sprayed corners on the surface of the casting due to the clamping position. Each time the casting is clamped, there are no clamping points around its perimeter, allowing the casting to rotate within a certain angle range while remaining stable.

[0017] Furthermore, two limit rods 7 are provided on the circumferential surface of the ring frame 1, and two limit switches 8 are installed on the support base 2, which are respectively used to sense the limit rods 7. The limit switches 8 are connected to the motor. After the limit rod 7 touches the corresponding limit switch 8, the motor 15 stops rotating, so that the ring frame 1 rotates within a set angle range to prevent the ring frame 1 from rotating too much.

[0018] Furthermore, the movable clamping rod 5 is connected to a flexible pad 10 via a universal joint 9. The flexible pad 10 prevents damage to the casting, increases friction with the rod, and improves clamping stability.

[0019] Furthermore, a feeding rack 11 is provided on one side of the support base 2. The feeding rack 11 is inclined, and several sliding rollers 12 are rotatably mounted on the feeding rack 11. The flexible pad 10 can rotate at a certain angle relative to the movable clamping rod 5 in any direction, which can adapt to the complex structure of the casting.

[0020] Furthermore, a feeding rack is provided on the other side of the support base 2, and the structure of the feeding rack is the same as that of the feeding rack 11. Materials are gradually fed from one side of the feeding rack 11, clamped by the movable clamping rod 5 of the fixing device, and discharged from the feeding rack side.

[0021] It is worth mentioning that the technical features of motors, cylinders, limit switches, etc. involved in this utility model patent application should be regarded as prior art. The specific structure, working principle, and possible control methods and spatial arrangement of these technical features can be adopted using conventional choices in the field, and should not be regarded as the inventive point of this utility model patent. This utility model patent will not be further elaborated in detail.

[0022] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make many modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning or limited experimentation on the basis of the prior art should be within the scope of protection defined by the claims.

Claims

1. A workpiece fixing device for spraying coating on the surface of castings, characterized in that, The device includes a circular frame and a support base. A ring rack is fixedly connected to the circumference of the circular frame. The support base is provided with at least two support gears, which are rotatably mounted on the support base. The ring rack meshes with the ring rack and supports the circular frame. One of the support gears is driven to rotate by a motor. Several movable clamping rods are installed on the circular frame. The movable clamping rods point to the center of the circular frame and are driven by a cylinder fixed to the circular frame to move back and forth along the radial direction of the circular frame.

2. The workpiece fixing device for surface coating of castings as described in claim 1, characterized in that, The movable clamps are divided into four teams, each team consisting of two parallel movable clamps, and the four teams of movable clamps are evenly distributed around the circular frame.

3. The workpiece fixing device for surface coating of castings as described in claim 2, characterized in that, Two limit rods are provided on the circumference of the ring frame, and two limit switches are installed on the support base to sense the limit rods. The limit switches are connected to the motor.

4. The workpiece fixing device for surface coating of castings as described in claim 2, characterized in that, The movable clamping rod is connected to a flexible pad via a universal joint.

5. The workpiece fixing device for surface spraying of castings as described in claim 1, characterized in that, The support base is provided with a feeding frame on one side. The feeding frame is inclined and has several sliding rollers rotatably installed on it.

6. The workpiece fixing device for surface spraying of castings as described in claim 5, characterized in that, The other side of the support base is provided with a material unloading frame, the structure of which is the same as that of the material loading frame.

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